Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6456382 | Interferometer that measures aspherical surfaces | Hiroshi Ichihara, Takashi Gemma, Hajime Ichikawa | 2002-09-24 |
| 6344898 | Interferometric apparatus and methods for measuring surface topography of a test surface | Takashi Gemma, Hiroshi Ichihara, Hajime Ichikawa, Bruce Jacobsen | 2002-02-05 |
| 6097473 | Exposure apparatus and positioning method | Kazuya Ota | 2000-08-01 |
| 5986760 | Shape measurement method and high-precision lens manufacturing process | Takashi Genma, Tetsuji Onuki, Masami Ebi, Hajime Ichikawa | 1999-11-16 |
| 5965611 | Pharmaceutical composition for treating peripheral circulation disorders | Hirofumi Tanabe, Toshinobu Murakami, Takashi Matsunaga | 1999-10-12 |
| 5808801 | Head mount display and an optical system for use in the display | Kenji Tozaki | 1998-09-15 |
| 5796483 | Method and apparatus for position sensing | — | 1998-08-18 |
| 5434112 | High pressure injection nozzle | Shigetomo Matsui, Hiroyuki Matsumura, Yoshikazu Ikemoto, Yasuhiro Kumon, Keiji Tsujita +3 more | 1995-07-18 |
| 5334561 | High pressure injection nozzle | Shigetomo Matsui, Hiroyuki Matsumura, Yoshikazu Ikemoto, Yasuhiro Kumon, Keiji Tsujita +3 more | 1994-08-02 |
| 5202546 | Root pass bead welding method | Hisao Hasegawa, Masaki Tanaka, Katsumi Miyagawa | 1993-04-13 |
| 5121268 | Apparatus for recording and/or reproducing information with a lid for protecting the recording medium and a recording medium loading/ejecting mechanism | Makoto Tani | 1992-06-09 |
| 4672163 | Nozzle for gas shielded arc welding | Shigetomo Matsui, Hiroichi Okada, Takashi Sakurai | 1987-06-09 |
| 4449241 | Toner cleaning apparatus | — | 1984-05-15 |
| 4433905 | Sheet and original feeding for image forming system | Toshio Haramaki | 1984-02-28 |
| 4394427 | Electrophotographic sensitizing screen with peripherally clogged apertures | Masaji Nishikawa, Norio Amemiya, Tadahiro Yasuda | 1983-07-19 |
| 4350870 | Temperature sensor for sheet-shaped heating element | Tastuo Takizawa | 1982-09-21 |
| 4279980 | Electrophotographic sensitizing screen | Masaji Nishikawa, Norio Amemiya, Tadahiro Yasuda | 1981-07-21 |
| 4272597 | Electrophotographic sensitizing screen | Masaji Nishikawa, Norio Amemiya, Tadahiro Yasuda | 1981-06-09 |
| 4249064 | Heat fixing device for electrographic apparatus | — | 1981-02-03 |