Issued Patents All Time
Showing 76–91 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5968673 | Solid electrolyte thin film and method for producing the same | Masanobu Aizawa, Masahiro Kuroishi | 1999-10-19 |
| 5748658 | Semiconductor laser device and optical pickup head | Hideyuki Nakanishi, Hideo Nagai, Akio Yoshikawa | 1998-05-05 |
| 5729519 | Optical head including a semiconductor laser having a non-scatter area to diffuse incident light beams | Hideyuki Nakanishi, Hideo Nagai, Akio Yoshikawa | 1998-03-17 |
| 5539767 | Semiconductor laser device | Hideyuki Nakanishi, Hideo Nagai, Akio Yoshikawa | 1996-07-23 |
| 5517479 | Optical head including a semiconductor laser having a non-scatter incident area | Hideyuki Nakanishi, Hideo Nagai, Akio Yoshikawa | 1996-05-14 |
| 5481524 | Diffraction element and optical pick-up assembly | Hideyuki Nakanishi, Hideo Nagai, Akio Yoshikawa | 1996-01-02 |
| 5478438 | Method of etching semiconductor substrate | Hideyuki Nakanishi, Hideo Nagai, Akio Yoshikawa | 1995-12-26 |
| 5237362 | Varifocal lens | Tokio Ishino, Saburo Sasaki, Hiroshi Terui | 1993-08-17 |
| 5190697 | Process of making a PTC composition by grafting method using two different crystalline polymers and carbon particles | Kumakazu Ohkita, Toshiaki Abe, Shoichi Sugaya | 1993-03-02 |
| 5171774 | PTC compositions | Mayumi Takata, Naoki Yamazaki, Syoiti Sugaya | 1992-12-15 |
| 5148212 | Flash control based on calculated required flash energy | Yoshio Serikawa, Susumu Iguchi, Hiroshi Takeda, Shigeru Mitsu, Kenji Koyama +2 more | 1992-09-15 |
| 4887120 | Electronic flash photographing system | Mikio Kobayashi | 1989-12-12 |
| 4809031 | Photometer for use in a camera | Touru Sakaguchi, Akira Takahashi | 1989-02-28 |
| 4798758 | Foam glass having crust layer and method of producing same | Makoto Nagano, Akira Nakanishi, Tomoyoshi Hiraki, Shoji Takahashi, Shuhei Kobayashi +2 more | 1989-01-17 |
| 4737806 | Apparatus for flash photographing | Toru Sakaguchi, Akira Takahashi | 1988-04-12 |
| 4717931 | Fail-safe film prewinder for cameras | Keiji Himuro | 1988-01-05 |