Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8051694 | Method of and apparatus for manufacturing shaft | Yoshihisa Doi, Yoshimi Usui, Masahiko Seki | 2011-11-08 |
| 5066101 | Color separation optical system and method of manufacturing the same | Shinichiro Aoki, Yasuyuki Morita, Akitoshi Mori, Yuji Hashidate, Tatsuki Tsukada +1 more | 1991-11-19 |
| 4948238 | Optical projection system | Nobuhiro Araki, Takeo Sato, Noboru Nomura, Keisuke Koga | 1990-08-14 |
| 4928435 | Apparatus for working curved surfaces on a workpiece | Takeshi Masaki, Yukuo Sakagaito | 1990-05-29 |
| 4890899 | Color separation optical system which utilizes glass frit for bonding | Shinichiro Aoki, Yasuyuki Morita, Akitoshi Mori, Yuji Hashidate, Tatsuki Tsukada +1 more | 1990-01-02 |
| 4861148 | Projection optical system for use in precise copy | Takeo Sato, Nobuhiro Araki, Noboru Nomura, Atushi Ueno, Shotaro Yoshida | 1989-08-29 |
| 4847688 | Moving body recognition circuit using luminance signal and moving body tracking apparatus using the moving body recognition circuit | Shigeru Nishimura, Toshihisa Kuroda | 1989-07-11 |
| 4771157 | Electrical discharge machining apparatus for forming minute holes in a workpiece | Takeo Sato, Nobuhiro Araki, Hisato Matsushita | 1988-09-13 |
| 4757354 | Projection optical system | Takeo Sato, Nobuhiro Araki, Noboru Nomura, Atsushi Ueno, Shotaro Yoshida | 1988-07-12 |
| 4755030 | Lens for facsimile or laser printer | Nobuhiro Araki, Yukuo Sakagaito | 1988-07-05 |
| 4701591 | Apparatus for processing multiple workpieces utilizing a single laser beam source | Takeshi Masaki, Yukuo Sakagaito, Katsumasa Yamaguchi, Hiromichi Kinoshiro, Hiroto Toba | 1987-10-20 |
| 4691998 | Polygon mirror construction | Yukuo Sakagaito, Katsutoshi Yonemochi, Takeshi Masaki | 1987-09-08 |