Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680246 | Optical amplifier and optical transmission apparatus | Tsukasa Takahashi, Yuji Tamura, Michikazu Shima, Kazuo Yamane, Yumiko Kawasaki +6 more | 1997-10-21 |
| 5649862 | Video game apparatus, method and device for controlling same, and memory cartridge for video games | Hironobu Sakaguchi | 1997-07-22 |
| 5625481 | Auxiliary-signal transmission system | Yuji Tamura, Tsukasa Takahashi, Michikazu Shima, Yumiko Kawasaki, Kazuo Yamane | 1997-04-29 |