Exhibiting at OXEXPO 2026
OHARA will exhibit at the Ocean Transformation Exhibition (OXEXPO), dedicated to promoting next-generation ocean industries, on November 25–26, 2026, at Pacifico Yokohama, Exhibition Hall C, Booth A-64.
O'Hara Co., Ltd.
株式会社オハラOHARA INC.Alias
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Basic information
- Head office
- 252-5286, 1-15-30 Koyama, Central-ku, Sagamihara City, Kanagawa Prefecture, Japan
- Chief executive
- Hirokazu Saito
- Capital
- 5,805,005,000 (58 100 million)
- Employees (non-consolidated)
- 468 people
- Employees (consolidated)
- 468 people
- Start date
- 1935-10-01
- End date
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Websites
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Business
Manufacture and sale of glass materials for optical and electronics equipmentManufacture and sale of optical glassManufacture and sale of specialty glassManufacture of high-performance optical glassManufacture of glass for optical componentsManufacture of decorative glass
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Related companies
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Network
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History
Jinba Kōhara founded Kōhara Optical Glass Manufacturing (now O'Hara Co., Ltd.) and began operations in Kamata, Tokyo.
Jinba Kōhara founded Kōhara Optical Glass Manufacturing (now O'Hara Co., Ltd.) and began operations in Kamata, Tokyo.
Commencement of optical glass melting
Commenced the melting operations for optical glass.
Reorganized into a corporation
Converted to Kobara Co., Ltd.
Commencement of construction at Sagamihara factory
Sagamihara plant commenced construction.
Relocated headquarters to Sagamihara City, Kanagawa Prefecture
Headquarters relocated to Sagamihara, Kanagawa Prefecture.
Commencement of platinum crucible melting
Commenced the platinum crucible melting operations.
Start selling impact-resistant high-hardness transparent glass ceramics (NANOCERAM™): start selling radiation-resistant optical glass
Commencement of lantern glass production
Designated CAI (Chicago Aircraft Industries) in the United States as an export agent
Commencement of continuous melting strip method production
Acquisition of shares of Ashigara Optical Co., Ltd.
Commencement of continuous melting direct press production
Designated Bones Co. as an export agent (Recon Optical Co.)
Our glass was used in the Apollo 11 lunar landing
Production of low-refractive-index, low-dispersion glass (S-FPL51) commenced.
Commencement of glass bead production.
Start of production of Lantern DP (direct press material) : Start of production of Pentaprism DP products.
Establishment of OHARA Optical Glass Inc. (USA, now Ohara Corporation).
Our glass was installed on the Space Shuttle Columbia.
Mass production of high-homogeneity glass for stepper (Δnd ±0.5 to ±1.0 ×10^-6) commenced.
Commencement of delivery of Cherenkov glass to the High Energy Physics Laboratory.
Renamed to OHARA Corporation.
Establishment of Taiwan Ohara Optical Co., Ltd. : Commencement of production of high-transmission UV (365 nm) glass : Establishment of OPC Co., Ltd. (now OPC Corporation).
Full-scale production of aspheric mold illumination elements commenced : Commencement of crystalline glass production.
Introduction of 18-inch phase-shifting interferometer (ZYGO Mark IV).
Establishment of OHARA GmbH (Germany) : Change of optical glass nomenclature.
Commencement of environmentally friendly optical glass production.
Commencement of crystalline glass bead production : Establishment of OHARA OPTICAL (M) SDN. BHD. (Malaysia) : Introduction of ultra-precision spectrometer.
Declaration of TQC implementation : Commencement of measurement services.
Commencement of production of ultra-low expansion glass ceramics (ClearCeram™-Z) : Commencement of production of mold-pressable mirror preform material.
Commencement of production of glass ceramics for hard disk substrates.
Start of ACTIVE-21 (mid-term vision).
Establishment of OHARA DISK (M) SDN. BHD. (Malaysia) : ISO 9002 certification obtained for hard disk division.
All 112 recommended optical glass types (at the time) were eco-friendly : Commencement of production of glass disks for magnetic head lift height measurement : ISO 9002 certification obtained for optical glass and special glass divisions.
ISO 9001 certification obtained: Start of production of high-refractive, low-density glasses for eyeglasses
Our optical glass installed in the Subaru telescope's primary focus camera "SC": Start of production of glass substrates for DWDM filters
Start of production of low-light elastic glass: ISO 14001 certification obtained: Start of commissioned refractive index measurement service in vacuum UV range
Lianyi Xiaoyuan Optical (Dongguan) Co., Ltd. (China) established (joint venture)
Obara Optical (Hong Kong) Limited established: commencement of large-scale continuous melting: Obara Optical (Zhongshan) Co., Ltd. (China)
Start of "Fueling Operation" (business innovation)
Listing of shares on the First Section of the Tokyo Stock Exchange
Membership in the Japan Federation of Economic Organizations: Start of production of eco-glass for fiber (e.g., endoscopes)
Completion of headquarters building: Start of production of low-fluorescence glass (e.g., for microscopes): Stock split executed: Ultra-low expansion glass ceramics (ClearCeram™-Z) installed on the lunar orbiter "Kaguya (SELENE)"
Acquisition of treasury shares: Consolidated subsidiary status for Ohara Quarts Co., Ltd.
Huaguang Xiaoyuan Optical Materials (Xiangyang) Co., Ltd. (China) established (joint venture)
Establishment of Taiwan Ohara Optical Materials Co., Ltd.: High homogeneity optical glass installed in the Subaru telescope's primary focus camera "HSC"
Launch of lithium-ion conductive glass ceramics (LICGC™)
Withdrawal from hard disk glass substrate business: Ultra-low expansion glass ceramics (ClearCeram™-Z) adopted for the large astronomical telescope "TMT": Our glass used in the separation camera of "Hayabusa2"
Start of mass production supply of aspherical glass molded lenses: 80th anniversary of founding: Launch of impact-resistant, high-hardness clear glass ceramics (NanoCeram™): Launch of radiation-resistant optical glass: Sale of lithium-ion conductive glass ceramics (LICGCSP-01)
The impact-resistant, high-hardness transparent microcrystalline glass (NANOCERAM™) is used in the high-end interchangeable lens filter 'WR CERAMIC PROTECTOR': a prototype of a fully solid-state battery employing lithium-ion conductive microcrystalline glass (LICGC™) operated at -30 °C.
Launch of automotive camera-specific optical glass material: Ultra-low expansion glass ceramics (ClearCeram™-Z) adopted for the ultra-low altitude satellite technology test vehicle "Tsubame (SLATS)"
The world's first automotive camera optical glass material is now available: ultra-low expansion microcrystalline glass (クCLEARCERAM™-Z) is used in the ultra-low altitude satellite technology test vehicle 'Yan (SLATS)'.
Participation in the NEDO Project Advanced & Innovative Battery Material Evaluation Technology Development (Phase 2): Start of operation of new aspherical glass molded lens factory
Participate in NEDO project for advanced and innovative battery material evaluation technology development (Phase 2)
Ultra-low expansion glass ceramics (ClearCeram™-Z) adopted for the largest domestic telescope "Seimei": Sale of lithium-ion conductive glass ceramics (LICGC™PW-01)
Confirmation that lithium-ion conductive glass ceramics (LICGC™PW-01) improve lithium-ion battery lifespan: Opening of Ohara Oita Sales Office
Our optical glass used in NASA's Mars rover "Perseverance"
Impact-resistant, high-hardness clear glass ceramics (NanoCeram™) adopted as camera protector for the ultra-small optical satellite "KITSUNE"
Impact-resistant, high-hardness clear glass ceramics (NanoCeram™) adopted for high-strength display protective glass for docomo select smartphones
Our optical glass used in the navigation camera and spectrometer of the small lunar landing demonstrator "SLIM"
The lithium-ion conductive glass ceramic (LICGC™SP-01) is used in the humidity-variable battery at the National Institute of Advanced Industrial Science and Technology.
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News
Exhibiting at OXEXPO 2026
O'Hara Optical Glass Adopted for MMX Mars Satellite Explorer
O'Hara-made optical glass was adopted for the wide-angle spectrometer camera "OROCHI" and Raman spectrometer "RAX" on the Mars satellite explorer "MMX". MMX was released into Mars transfer orbit on October 20, 2026, by the H3 rocket No.10. It will conduct observations and sample collection in the Martian atmosphere and is scheduled to return to Earth in fiscal year 2031.
Participating in OXEXPO
We will exhibit at OXEXPO, an exhibition aimed at promoting the next-generation marine industry. The event will run from November 25 to 26, 2026, at Pacific Yokohama Exhibition Hall C, Booth A-64.
Ohara Rose Garden Opens to the Public on November 15
Ohara Co., Ltd. will open the Ohara Rose Garden to the public on Sunday, November 15, 2026, from 9:00 a.m. to 3:00 p.m. Admission is free. Planned activities include balloon performances, opportunities to meet and ride ponies, a kids’ park, sales of flower seedlings and vegetables, and resin workshops. This year’s event will be held for one day only.
Ohara Through the Seasons: Autumn
This introduces white spider lilies that glow in the soft light. Their delicate white petals evoke the richness of nature.
Change of Email Sending Method (PPAP Discontinued)
From September 18, 2026, when employees send files to customers or business partners via email, the password-protected attachments and PPAP have been discontinued and replaced with a download URL method. Recipients must obtain the file from the URL listed in the email. Emails sent to employees from customers are not affected by this change. We request cooperation to strengthen information security.
Ohara Optical Glass Selected for the Nancy Grace Roman Space Telescope
Optical glass made by Ohara Inc. has been selected for the coronagraph instrument and wide-field instrument of NASA's next-generation Nancy Grace Roman Space Telescope, which will observe broad regions of the universe.
Ohara Corporation Exhibits at Kyushu Semiconductor Industry Exhibition
Ohara Corporation will exhibit at the 3rd Kyushu Semiconductor Industry Exhibition. The event will be held on September 30 (Wednesday) and October 1 (Thursday), 2026, at Marine Messe Fukuoka A & B Halls, Booth No. A7-24.
Kohara Optical (Hong Kong) Limited to Participate in CIOE 2026
Kohara Optical (Hong Kong) Limited will participate in the 27th China International Optoelectronic Exposition (CIOE 2026). The exhibition will run from September 9 to 11, 2026, at booth 5B62 in Hall 5 of the Shenzhen World Exhibition and Convention Center. Visit the official website for more information.
Kohara Optical to Exhibit at CIOE 2026
Kohara Optical (Hong Kong) Limited will exhibit at the 27th China International Optoelectronic Exposition (CIOE 2026). The event will run from Wednesday, September 9, through Friday, September 11, 2026, at booth 5B62 in Hall 5 of the Shenzhen World Exhibition and Convention Center (Bao'an New Venue). See the official website for details.
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Sources & updates
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UPDATED2026-09-29 09:51 · Model: ggml-org/gpt-oss-20b