Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5322541 | Method of producing glass blank | Yoshiyuki Shimizu, Shoji Nakamura, Tadayoshi Yonemoto, Masaaki Sunohara, Noriyuki Kawata | 1994-06-21 |
| 5201927 | Method of producing the optical element | Shoji Nakamura, Takasi Inoue, Masaaki Sunohara | 1993-04-13 |
| 5188652 | Machine for molding optical element | Shoji Nakamura, Takasi Inoue, Masaaki Sunohara | 1993-02-23 |
| 5138131 | Laser cutting method and apparatus for effecting said method | Yukio Nishikawa, Yuji Uesugi, Katsuhiro Kuriyama | 1992-08-11 |
| 5120343 | Apparatus for producing optical glass element | Hideto Monji, Kiyoshi Kuribayashi, Masaaki Sunohara, Tadayoshi Yonemoto, Noriyuki Kawata +1 more | 1992-06-09 |
| 5087279 | Method of producing optical glass element and production apparatus using this method | Hideto Monji, Kiyoshi Kuribayashi, Masaaki Sunohara, Tadayoshi Yonemoto, Noriyuki Kawata +1 more | 1992-02-11 |
| 4706143 | Rotary head cylinder device with fluid bearing | Takafumi Asada, Cyuryo Yoshida, Kazuyoshi Kurose | 1987-11-10 |
| 4706144 | Rotary head device with fluid bearing | Takafumi Asada, Cyuryo Yoshida, Yoshiteru Hosokawa | 1987-11-10 |