Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6316320 | DRAM device with improved memory cell reliability | Takumi Nakahata, Satoshi Yamakawa | 2001-11-13 |
| 6252351 | Light emitting diode array | Genta Koizumi, Katsuhiko Sakai, Hiroshi Mabuchi, Mitsuru Yamazaki, Seiichi Kurihara | 2001-06-26 |
| 6252897 | External mirror type wavelength tunable laser | — | 2001-06-26 |
| 5699163 | Method of determining the orientation of fibers on the surface of paper | Hidenobu Todoroki, Akira Sakamoto, Nobuo Takeuchi | 1997-12-16 |
| 5601137 | Continuous steel plate manufacturing facilities | Shigeki Narishima, Kinichi Higuchi | 1997-02-11 |
| 5540345 | Process of producing diffraction grating | Hiroshi Sugimoto, Teruhito Matsui, Ken-ichi Ohtsuka, Toshiyuki Ohishi | 1996-07-30 |
| 5539668 | Optical switching apparatus | Yasunori Tokuda, Shigetoshi Nara | 1996-07-23 |
| 5475233 | Method and apparatus for determining the fiber orientation of paper by measuring the intensity of a light beam at eight or more locations distributed on the circumference of a circle | Kazuhiko Fukuoka, Takeji Inadome, Akio Hatano | 1995-12-12 |
| 5306925 | Nonlinear optical element and method of using the same | Yasunori Tokuda | 1994-04-26 |
| 5300190 | Process of producing diffraction grating | Hiroshi Sugimoto, Teruhito Matsui, Ken-ichi Ohtsuka, Toshiyuki Ohishi | 1994-04-05 |
| 5285080 | Method of selective light detection | Yasunori Tokuda | 1994-02-08 |
| 5274660 | Semiconductor device and method of making it | — | 1993-12-28 |
| D332606 | Facsimile machine | Akiyoshi Tanizawa | 1993-01-19 |
| 5036372 | Heterojunction avalanche transistor | Toshiyuki Ohishi, Hiroshi Sugimoto, Ken-ichi Ohisuka, Teruhito Matsui | 1991-07-30 |
| 5020072 | Semiconductor laser device | Hiroshi Sugimoto, Kenichi Ohtsuka, Toshiyuki Oishi, Teruhito Matsui | 1991-05-28 |
| 5004217 | Paper feeding device | Atsushi Kano, Masayuki Mizuno, Manabu Kajiwara, Kenji Sakaue, Kazuo Nakamura | 1991-04-02 |
| 4914525 | Image processing machine | Kenji Sakaue, Masahiro Hashizume, Taiichi Jinno, Kazuo Nakamura, Katsumi Nagata | 1990-04-03 |
| 4813612 | Paper feeding device | Atsushi Kano, Masayuki Mizuno, Manabu Kajiwara, Kenji Sakaue, Kazuo Nakamura | 1989-03-21 |
| 4790618 | Semiconductor laser module | — | 1988-12-13 |
| 4686083 | Aluminum alloy support for a lithographic printing plate | Kazushige Takizawa, Hirokazu Sakaki, Mamoru Matsuo, Akira Tajiri, Shin Tsuchida | 1987-08-11 |
| 4658920 | Combinatorial weighing and combinatorial counting method and apparatus | Seishi Matsumoto, Takeo Nakashimizu | 1987-04-21 |
| 4647178 | Unit-type copying machine | Kouichi Sasaki, Hideaki Tsudaka, Satoshi Namba, Shinsuke Yoshinaga | 1987-03-03 |
| 4549617 | Combinatorial weighing and combinatorial counting method and apparatus | Seishi Matsumoto, Takeo Nakashimizu | 1985-10-29 |
| 4520354 | Display device for copying apparatus | Tadashi Umeda, Hideo Miyoshi, Keiichi Kishimoto, Kazumi Iida, Kazunori Akiyama +1 more | 1985-05-28 |