Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7300723 | Heat resistant lithium cell | Seiji Morita, Nobuhiro Nishiguchi, Satoru Naruse, Masayuki Muraki, Masahiro Imanishi | 2007-11-27 |
| 6404729 | Optical disc | Nobuki Yamaoka | 2002-06-11 |
| 5883879 | High density optical disc configuration | Yukihiro Sugawara | 1999-03-16 |
| 5759749 | Developing method and developing apparatus for optical record medium | Hiroyuki Kosaka | 1998-06-02 |
| 4947384 | Optical disk having narrow and wide guide grooves | Kenji Suzuki, Toshihiko Takishita, Hirokazu Hashikawa, Tsuyoshi Hayashi, Minemasa Ohta | 1990-08-07 |
| 4837130 | Optical disk manufacturing method | Minemasa Ohta, Kenji Suzuki, Toshihiko Takishita, Tuyoshi Hayashi | 1989-06-06 |