Publication to[TO] Issue No. 609 (November 2026) Published
On November 2, 2026, we published issue No. 609 of KLASS Corporation's publication to[TO]. The issue is available for viewing via the specified link.
KLASS Inc.
KLASS株式会社KLASS CorporationAlias
§01
Basic information
- Head office
- 190 Hika, Ryuo-cho, Tatsuno City, Hyogo Prefecture, Japan
- Chief executive
- Masaki Korozen
- Capital
- 631,110,000 (6 100 million)
- Employees (non-consolidated)
- 290 people
- Employees (consolidated)
- 283 people
- Start date
- 1948-10-01
- End date
§02
Websites
§03
Business
Professional SegmentConsumer SegmentIndustry SegmentNew Industry SegmentWallpaper installation equipmentFloor installation equipmentCurtain manufacturing equipmentLaminate processing equipmentTatami manufacturing equipmentShoji manufacturing equipmentAuxiliary materialsBusiness support softwareKitchen equipmentCommercial tatami productsSolar power generationInterior decoration installation equipment such as automatic wallpaper adhesive machinesComputer-based tatami manufacturing systemAuxiliary materials such as interior construction tape and related tools, computer softwareInterior products such as special function tatamiIntermediary business for tatami replacement and shoji replacement workSale and installation of residential and industrial solar power generation systems and related productsElectricity sales businessDesign, development, and manufacturing of custom industrial equipment based on customer specificationsSale of kitchen food equipment such as dispensersPlanning, development, and sale of various automation systems utilizing water jet and robotics technologies
§04
Related companies
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Names without a link are companies not yet registered in OpenBizGraph
§05
Network
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§06
History
Founded in 1948 as a manufacturer of equipment for making tatami, the company has the deepest connection to Japanese homes. It was established as Ryuno Gear Manufacturing and started the tatami business.
Founded as Ryuno Gear Manufacturing.
Started the tatami business.
Kogeyasu-style semi-automatic tatami machine.
Kogai Chōsō established Ryūno Gear Manufacturing Co., Ltd. in Ryūno City (now Tatsuno City), Hyōgo Prefecture
April 1963: Developed and sold the mat-making machine 'Harima'.
Renamed to Kyokuto Sangki Co., Ltd.
Renamed to Kokuō Sangiki Co., Ltd.
February 1966: Company name changed to Kyokuto Sanki Co., Ltd.
September 1966: Tokyo branch office (now Tokyo branch and sales office) opened
April 1967: Second factory (now Shimada Training Center) opened
October 1969: Kogai Shin became president and CEO
Started an interior business and developed and sold automatic wallpaper adhesive machines.
Started interior business
Developed and sold Japan's first automatic wallpaper adhesive machine
December 1971: Developed and sold the first automatic wallpaper adhesive machine 'AC-1' in the interior industry.
November 1976: Tōhoku branch office (now Tōhoku sales office) opened
May 1979: Third factory (now Kamioka Factory) opened
November 1979: Kyushu sales office opened
March 1980: Osaka sales office opened
April 1980: Designated as a Small and Medium Enterprise Rationalization Model Factory
Developed and sold Japan's first computer-based tatami manufacturing system.
Developed and sold Japan's first computer-based tatami manufacturing system
June 1981: Developed and sold the first computer-based automatic mat stitching device in the mat industry.
July 1983: Launched the comprehensive interior catalog.
November 1983: Iwase factory opened
March 1984: Sapporo sales office opened
July 1984: Nagoya sales office opened
Started selling tatami-related products for general consumers.
Started consumer business
Started selling tatami-related products to general consumers
April 1985: Kogai Shin received the Minister of Science and Technology Award
June 1985: Started selling mat-related products for general consumers.
May 1986: Hokusei Kanto sales office opened
May 1987: Kogai Shin received the Order of the Rising Sun, Gold Rays with Rosette
October 1987: Opened Yokohama branch office
October 1988: Opened West Japan branch office
February 1999: Started selling curtain sewing system equipment.
December 1990: Current headquarters building completed
March 1992: Founded Kyokuto Dairi (now Monthly Kyokuto)
July 2000: Released the commercial automatic noodle cooker 'Yude Taro' and began selling kitchen equipment.
Started a food equipment business.
Started food equipment business
February 2004: 'Yude Taro' received the Excellent Product Award from the National Small and Medium Enterprise Integration Promotion Foundation.
October 2004: The automatic wallpaper adhesive machine 'Hiβ-G' was selected as a Good Design product by the Ministry of International Trade and Industry.
October 2007: 'Dispenser' was selected as a Good Design product by the Ministry of International Trade and Industry.
November 2007: Initiated proposals for 'Structural Reform of Mat Shops' to revitalize the mat industry.
September 1998: Held 50th anniversary celebration
Started an industrial equipment business.
Started industrial equipment business
February 2009: The automatic mat manufacturing system 'Super Mini Line' received the 24th Japan Innovation Promotion Association Innovation Award.
April 2009: The curtain wave processing machine 'Permanent Finisher' was selected as a notable invention by the Japan Science and Technology Agency.
May 1999: Obtained ISO 9001 certification
October 1999: Kogai Yajuku became CEO
May 2010: Started a network business that intermediates mat replacement work for general consumers to mat shops.
Started selling solar power generation systems.
Started solar energy business
Started selling solar power generation systems
April 2004: Opened precision machine assembly plant (ISO Class 8 equivalent cleanroom) at Isei factory
November 2014: Started selling solar power generation systems.
September 2016: Released the 'Multi Dispenser' for miso soup and dashi.
July 2008: Opened High-Tech Second Factory at Konoaka plant
November 2008: Opened solar power and all-electric showroom at headquarters
April 2019: The automatic wallpaper adhesive machine 'Hiβ-Rise' was selected as a Good Design Hyogo by the Hyogo Industrial Association.
The automatic wallpaper adhesive machine 'Hiβ-Rise' was selected for the Hyogo Industry Association Good Design Hyogo award.
June 2019: Released the funeral mat 'Okuri Tatami' and began sales to the funeral industry.
Released the funeral tatami 'Okuritami' and began sales outreach to the funeral industry.
November 2009: Opened Class 1,000 high-tech assembly plant (ISO Class 6 equivalent cleanroom) at Konoaka plant
September 2020: Started selling laminate processing equipment.
Started selling laminate processing equipment.
August 2011: Obtained ISO 14001 certification
Established 'Mikazuki Sunshine Park'.
Mega solar power plant
Established 'Mikazuki Sunshine Park'
July 2013: Commenced operation of Mega Solar Power Plant 'Mikazuki Sunshine Park'
April 2014: Opened wallpaper adhesive machine museum and solar power and all-electric showroom at headquarters
December 2017: Selected as 'Regional Future Leading Company' by the Ministry of Economy, Trade and Industry
Listed shares on the JASDAQ Standard of the Tokyo Stock Exchange.
Tokyo Stock Exchange
Listed shares on JASDAQ Standard
September 2018: Listed shares on the Tokyo Stock Exchange JASDAQ Standard
Made ROSECC Co., Ltd. a wholly-owned subsidiary.
Made ROSECC Co., Ltd. a wholly-owned subsidiary
October 2020: Fully acquired ROSECC Co., Ltd.
October 2021: Started providing the cloud tool 'Goolip' for estimates and invoice management to the construction industry.
Started providing the cloud tool 'Goolip' for estimates and invoice management to the construction industry.
April 2022: Moved to the Tokyo Stock Exchange Standard market due to market restructuring; completed new assembly building and production headquarters at Konoaka plant
October 2023: Changed company name to KLASS Co., Ltd.
Renamed from Kyokuto Sangki Co., Ltd. to KLASS Co., Ltd.
In October 2023, on its 75th anniversary, renamed from Kokuō Sangiki Co., Ltd. to KLASS Co., Ltd.
Started a solutions & network business.
Started solutions & network business
§07
News
Publication to[TO] Issue No. 609 (November 2026) Published
KLASS, Mini Tatami Experience Class for Children
KLASS Corporation conducted a vocational experience class at Tatsu no City Ritsuko Elementary School, where 18 students experienced planning, manufacturing, and selling through mini tatami making. They conceived product names and designs, made tatami, and presented them, learning the joy of creation and the importance of communication. Participants said, "It was fun!", and it was a precious time to touch the children's creativity.
Public Relations Magazine to[To] Issue 608 Published
KLASS Corporation published the Public Relations Magazine to[To] Issue 608 (October 2026). The magazine is available online.
Fall and Winter Work Experience and Open Company Programs for 2028 Graduates
KLASS Corporation has published information about its fall and winter work experience program for research and development positions and its open company program for all job categories, aimed at students graduating in 2028. The programs offer a chance to learn about the company’s work and culture. See the corporate website or Mynavi for details, or contact Tanaka in Human Resources.
KLASS Co., Ltd. Publishes Issue 607 of Its Newsletter to[too]
KLASS Co., Ltd. has published issue 607 of its newsletter, to[too]. Read it using the link provided.
KLASS President Featured in Nikkei’s Koyu-sho Column
Masaki Koro, president and representative director of KLASS Corporation, was featured in the culture section of the August 21, 2026, edition of The Nikkei in its Koyu-sho column. In the article, ‘A Guide to Laughter,’ he discusses how friendships from junior high school and humor developed through rakugo inform his management. The article is available in the print edition and to paid subscribers online.
KLASS President Featured in Nikkei Column Koyusho
An article about Masaki Koro-yasu, president of KLASS Co., Ltd., appeared in the Nikkei column Koyusho. It describes how his friendships and values learned through rakugo inform his approach to management.
Career Recruitment Opens at Kanto Distribution Center
Career recruitment has opened at the Kanto Distribution Center. Interested applicants can review the details and contact Tanaka in Human Resources to apply or ask questions at 0791-62-1771. The inquiry form is also available.
Recruitment for Career Positions at Kanto Distribution Center Begins
KLASS Inc. has started recruiting for career positions at the Kanto Distribution Center. Interested parties can check the details and apply or inquire.
Publication of the 606th issue of KLAS Corporation's Public Relations Magazine
KLASS Corporation published the 606th issue of its public relations magazine on August 3, 2026. The magazine can be viewed on the official website.
§08
Public records
National Tax Agency basic information7140001038325
Source: National Tax Agency Corporate Number Publication Site, basic three items
- Trade name
- ＫＬＡＳＳ株式会社
- Trade name (kana)
- クラス
- Name in English
- Corporation type
- 301
- Address
- 〒679-4122 兵庫県たつの市龍野町日飼１９０番地
- Postal code
- 6794122
- Prefecture code
- 28
- City code
- 229
- Address outside Japan
- Prefecture in English
- City in English
- Address outside Japan in English
- Corporate number assignment date
- 2015-10-05
- Update date
- 2023-10-11
- Change date
- 2023-10-02
- Registry closure date
- Reason for registry closure
- Successor corporate number
- Details of the change
- Latest record
- 1
- Excluded from search
- 0
- Processing type
- 11
- Correction type
- 0
- Trade name image ID
- Address image ID
- Sequence number
- 4600392
METI gBizINFO7140001038325
Source: gBizINFO (Ministry of Economy, Trade and Industry)
- Corporate number
- 7140001038325
- Trade name
- ＫＬＡＳＳ株式会社
- Trade name (kana)
- クラス
- Trade name (alphabet)
- Registry closure date
- Reason for registry closure
- Registered address
- 兵庫県たつの市龍野町日飼１９０番地
- Postal code
- 6794122
- Prefecture
- 兵庫県
- Prefecture code
- 28
- City or district
- たつの市
- City code
- 229
- Street address
- 龍野町日飼１９０番地
- Organisation type
- 301
- Processing type
- 11
- Correction type
- 0
- Status
- Representative
- 代表取締役社長 頃安 雅樹
- Capital
- 631112000
- Employees
- 296
- Employees (male)
- 255
- Employees (female)
- 48
- Business summary
- Website URL
- Year founded
- Business category
- E:製造業
- Date established
- Unified government qualification - grade
- Unified government qualification - business items
- Update date
- 2023-10-11
- Key information
- 7140001038325
§09
Sources & updates
DOMAINOwn domain：Yes
UPDATED2026-09-29 15:08 · Model: ggml-org/gpt-oss-20b