Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9192514 | Medical instrument | Tsuguo Nanjo, Yoshihisa Harada, Toshifumi Sumiya, Koji Osawa, Susumu Oshima +2 more | 2015-11-24 |
| 7254377 | Parallel operation system of transmission amplifier | Satoshi Maruyama, Yasuyuki Oishi, Tokuro Kubo, Norio Tozawa, Fumihiko Kobayashi | 2007-08-07 |
| 6657710 | Lens meter | Tadashi Kajino | 2003-12-02 |
| 5886779 | Lens meter | Tadashi Kajino | 1999-03-23 |
| 5759381 | Sn-Bi alloy-plating bath and method for forming plated Sn-Bi alloy film | Hitoshi Sakurai, Ayumi SAITO, Mayumi Date | 1998-06-02 |