Issued Patents All Time
Showing 76–99 of 99 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818655 | Electrophotographic light receiving member with surface layer of a-(Si.sub.x C.sub.1-x).sub.y :H.sub.1-y wherein x is 0.1-0.99999 and y is 0.3-0.59 | Shigeru Shirai, Keishi Saito, Takayoshi Arai, Yasushi Fujioka | 1989-04-04 |
| 4810377 | Clarification device | Sohei Okamoto, Yukio Suzuki | 1989-03-07 |
| 4804604 | Light receiving member for use in electrophotography | Shigeru Shirai, Keishi Saito, Takayoshi Arai, Yasushi Fujioka | 1989-02-14 |
| 4795691 | Layered amorphous silicon photoconductor with surface layer having specific refractive index properties | Tetsuya Takei, Tatsuyuki Aoike, Keishi Saito | 1989-01-03 |
| 4792509 | Light receiving member for use in electrophotography | Shigeru Shirai, Keishi Saitoh, Takayoshi Arai, Yasushi Fujioka | 1988-12-20 |
| 4788120 | Light receiving member for use in electrophotography having an amorphous silicon layer | Shigeru Shirai, Keishi Saito, Takayoshi Arai, Yasushi Fujioka | 1988-11-29 |
| 4786574 | Layered amorphous silicon containing photoconductive element having surface layer with specified optical band gap | Shigeru Shirai, Keishi Saitoh, Takayoshi Arai, Yasushi Fujioka | 1988-11-22 |
| 4780387 | Light receiving member for use in electrophotography comprising amorphous silicon layer and polycrystalline layer | Shigeru Shirai, Keishi Saitoh, Takayoshi Arai, Yasushi Fujioka | 1988-10-25 |
| 4750071 | Magnetic head assembly including a pair of heads disposed in the vicinity of each other | Yumiko Hamanaka | 1988-06-07 |
| 4738913 | Light receiving member for use in electrophotography comprising surface layer of a-Si:C:H | Shigeru Shirai, Keishi Saito, Takayoshi Arai, Yasushi Fujioka | 1988-04-19 |
| D295043 | Microprocessor | Masaki Hara, Sadao Shiratani, Masaharu Sawatani | 1988-04-05 |
| 4731686 | Magnetic head | Nobuaki Kaneko, Masahiro Yamamoto, Yutaka Hayashi | 1988-03-15 |
| 4714955 | Solid-state color image pickup apparatus | Ryuji Nishimura, Masaru Noda, Takuya Imaide | 1987-12-22 |
| 4699799 | Method for forming a deposition film | — | 1987-10-13 |
| 4690594 | Deburring apparatus | — | 1987-09-01 |
| 4678921 | Photo-electric smoke detector with light shielding electrode | Takehiro Nakamura, Susumu Sato, Tadashi Hattori, Teiichi Nabeta | 1987-07-07 |
| 4677486 | Video signal processing circuitry | Masaru Noda | 1987-06-30 |
| 4649282 | Smoke sensing apparatus of the light scattering type | Kazuomi Ota, Seiichi Narita, Mitutoshi Moriya | 1987-03-10 |
| 4635086 | Self turnoff type semiconductor switching device | Junichi Miwa | 1987-01-06 |
| 4627362 | Air sliding device for work pallets or the like | Yoji Ise, Keiichi Tachikawa | 1986-12-09 |
| 4596509 | Apparatus for moving and stopping tools | Yoji Ise, Keiichi Tachikawa | 1986-06-24 |
| 4382269 | Magnetic head | — | 1983-05-03 |
| 4203403 | Ignition device for an internal combustion engine | Hideo Fujii | 1980-05-20 |
| 4184467 | Contactless ignition system for internal combustion engine | Masao Nagasawa | 1980-01-22 |