Issued Patents All Time
Showing 201–213 of 213 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986670 | Temperature measurement device | Futoshi Uchiyama, Ko Agatsuma, Takeshi Ohara, Koichi Tsukamoto, Sumiyuki Ishigami +1 more | 1991-01-22 |
| 4973311 | Aspirator for endoscopic system | Keiichi Iwakoshi, Hiroyuki Umeda, Toshinori Nishizawa | 1990-11-27 |
| 4928074 | Automatic gain control circuit | Tetsuya Iizuka, Kiyoshi Furuya, Norio Shoji, Masato Sekine | 1990-05-22 |
| 4844052 | Apparatus for transmitting liquid and gas in an endoscope | Keiichi Iwakoshi, Hiroyuki Umeda, Toshinori Nishizawa | 1989-07-04 |
| 4836187 | Constant pressure apparatus of an endoscope | Keiichi Iwakoshi, Hiroyuki Umeda, Toshinori Nishizawa | 1989-06-06 |
| 4795605 | Nuclear fusion apparatus | Tokio Fukunaga, Fukutaro Kishimoto, Kazuyoshi Yabuuchi, Haruhiko Tomita, Kazuo Maeno | 1989-01-03 |
| 4771766 | Guide tube assembly of endoscope | Hisatake Aoshiro | 1988-09-20 |
| 4630116 | Video signal inverting circuit | Toshiaki Isogawa, Ryuji Shiono, Tsutomu Niimura, Joichi Sato | 1986-12-16 |
| 4623933 | Video camera gain control circuit | Joichi Sato, Ryuji Shiono, Tsutomu Nimura, Toshiaki Isogawa | 1986-11-18 |
| 4589021 | Gamma compensating circuit | Joichi Sato, Ryuji Shiono, Tsutomu Niimura, Toshiaki Isogawa | 1986-05-13 |
| 4550475 | Quartz unit | Sumiyuki Ishigami | 1985-11-05 |
| 4545369 | Waterproof endoscope | — | 1985-10-08 |
| 4486681 | Y-Shaped support for piezoelectric resonator | Sumiyuki Ishigami | 1984-12-04 |