| 1930 |
Established Kagami Crystal Glass Institute in Takinogawa, Tokyo. |
| 1934 |
Kozo Kagami established Kagami Crystal Glass Works Ltd. in Kamata, Tokyo. It was Japan's first crystal glass factory. |
| 1937 |
Received a medal of honor at the Paris World Expo. |
| 1939 |
Received a medal of honor at the New York World Expo. |
| 1943 |
Supplied furnishings upon the marriage of an imperial princess. |
| 1948 |
Started supplying bottles for Shiseido's White Rose perfume. |
| 1952 |
Started supplying crystal glass tableware to the Ministry of Foreign Affairs for the use in Japanese embassies and consulates overseas. |
| 1958 |
Received Brussels World Expo Grand Prix |
| 1959 |
Supplied furnishings upon the marriage of Crown Prince Akihito and Crown Princess Michiko |
| 1960 |
Supplied glass parts for the building wall when the Togu Imperial Palace (Crown Prince’s palace) was constructed |
| 1960 |
Japan Art Academy Award was conferred upon Kozo Kagami |
| 1961 |
Supplied glass parts for the building wall when the Fukiage Imperial Palace (Emperor's palace) was constructed. |
| 1964 |
Started supplying bottles for Suntory's Imperial Whiskey |
| 1968 |
Supplied glassware for state banquets and chandeliers to the new Imperial Palace |
| 1974 |
Supplied tableware for official receptions at the State Guesthouse in Akasaka. |
| 1975 |
Supplied the new stemware line to the Imperial Household Agency for diplomatic corps' official dinner |
| 1982 |
Supplied gift products to the Togu Palace |
| 1985 |
Changed the company’s name to Kagami Crystal Co., Ltd. and became a 100% subsidiary of Nippon Sheet Glass Co., Ltd. |
| 1990 |
Supplied glassware to be used for the state funeral of Emperor Showa. |
| 1990 |
Relocated the head office and the factory from Ota-ku, Tokyo. Commenced a new factory in Ryugasaki, Ibaraki |
| 1992 |
Supplied glassware upon the marriage of Crown Prince Naruhito and Princess Masako. |
| 1992 |
Supplied the glassware for their Majesties Emperor and Empress upon the construction of the new Fukiage Imperial Palace. |
| 1996 |
Held an exhibition to mark the 100th anniversary of the birth of Kozo Kagami |
| 1997 |
Supplied to the Ministry of Foreign Affairs the new stemware line for official banquets at Japanese embassies and consulates overseas. |
| 1997 |
Designated as a Traditional Local Craft Art by Ibaraki prefecture. |
| 2000 |
On the occasion of the visit of their Majesties Emperor and Empress to Ibaraki Prefecture, they favoured and purchased Matsuo Matsuura's Gravure works. |
| 2002 |
Supplied crystal glassware for official banquets to the newly constructed Prime Minister’s official residence. |
| 2008 |
Supplied the new stemware line to the Ministry of Foreign Affairs for official banquets at Japanese embassies and consulates overseas. |
| 2010 |
Supplied glassware for their Majesties Emperor and Empress |
| 2016 |
The brand logo and mark are renewed and the brand name is changed from Kagami Crystal to KAGAMI. |
