Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11719789 | Optical proximity sensor and portable terminal apparatus for adjusting degree of freedom in arrangement position | Morito Kanamoto | 2023-08-08 |
| 11488531 | Proximity sensor and electronic device | Kohji Hamaguchi, Takahiro Inoue, Isamu Kawabe | 2022-11-01 |
| 7868702 | Photoreceiver/amplifier circuit, optical pickup device, and optical disk device | — | 2011-01-11 |
| 7175707 | P-type GaAs single crystal and its production method | Kenya Itani, Shinji Komata, Seiji Mizuniwa | 2007-02-13 |
| 7002881 | Light receiving amplification element | Takanori Okuda | 2006-02-21 |
| 6878202 | Method for growing single crystal of compound semiconductor and substrate cut out therefrom | Kenya Itani, Seiji Mizuniwa, Hiroshi Sasabe, Inao Fujisaki | 2005-04-12 |
| 6333383 | Non-crystalline polyester resin composition | — | 2001-12-25 |
| 5483200 | Light-receiving and amplifying device capable of switching between gain levels at high speed and obtaining a sufficient signal-to-noise ratio over a wide range in quantity of incident light | Naonori Okabayashi, Koichi Hanafusa | 1996-01-09 |