Issued Patents All Time
Showing 51–75 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5219706 | Naphthalocyanine derivative and production process thereof, as well as optical information recording media using the derivatives and production process thereof | Seiji Tai, Shigeru Hayashida, Nobuyuki Hayashi, Yasushi Iwakabe, Shunichi Numata +4 more | 1993-06-15 |
| 5212207 | Styrene-divinylbenzene copolymer having both amino and phosphonate groups | Katsuo Murayama, Yoshihiro Nakai | 1993-05-18 |
| 5198637 | Method of cutting grooves in hydrodynamic bearing made of ceramic material | Yumiko Noda, Ichiro Kamiya, Manabu Toshimitsu, Ryoichi Shinjo | 1993-03-30 |
| 5188737 | Method of removing nitrate ion from a solution containing nitrate and other anions | Katsuo Murayama, Toshihiro Nakai | 1993-02-23 |
| 5177717 | Optical memory medium and its information recording and erasing method and apparatus | Atsumi Watanabe, Satoshi Shimada, Hiroshi Sasaki, Nobuyoshi Tsuboi, Hideki Nihei +3 more | 1993-01-05 |
| 5161994 | Edge connector and board latching device for a connector | Takashi Kamono, Ryoji Nishimura | 1992-11-10 |
| 5142173 | Bearing structure | Daisuke Konno, Sachihiko Miwa, Shunichi Aiyoshizawa, Kazuyuki Kasahara, Kazuto Hirokawa +1 more | 1992-08-25 |
| 5110792 | Method and apparatus of optical modulation using superconductive oxide material | Takahiro Nakayama, Kunihiro Tamahashi, Moriaki Fuyama, Hiroyuki Minemura, Nobuyoshi Tsuboi +1 more | 1992-05-05 |
| 5089732 | Spindle motor | Daisuke Konno, Sachihiko Miwa, Shunichi Aiyoshizawa, Kazuyuki Kasahara, Kazuto Hirokawa | 1992-02-18 |
| 5049458 | Fuel cell | Hirotaka Nakagawa, Hiroshi Mihara, Shigeyoshi Kosuge, Hiroshi Tsuneizumi, Eiji Morishige | 1991-09-17 |
| 4998033 | Gas dynamic bearing for spindle motor | Yasushi Hisabe, Noriyuki Osada, Toshihiro Ohtani, Masahiko Kishi, Daisuke Konno +6 more | 1991-03-05 |
| 4985147 | Liquid separation membrane for pervaporation | Akira Mochizuki, Hisashi Ogawara, Syuzo Yamashita | 1991-01-15 |
| 4984996 | Printed circuit board edge connector | Tetsuya Watanabe, Tsutomu Nakamura, Naoki Kumagai, Takashi Kamono | 1991-01-15 |
| 4978187 | Optical element, optical disc and rotary encoder with the optical element | Hiroyuki Minemura, Nobuyoshi Tsuboi, Hiroaki Koyanagi, Shinji Ohyama | 1990-12-18 |
| 4969829 | Surface mounted connector having a securing tab | — | 1990-11-13 |
| 4944881 | Liquid separation membrane for pervaporation | Akira Michizuki, Hisashi Ogawara, Syuzo Yamashita | 1990-07-31 |
| 4937152 | Fuel cell | Hiroshi Tsuneizumi, Hirotaka Nakagawa, Eiji Morishige, Hiroshi Mihara | 1990-06-26 |
| 4937808 | Intergrated optical head with flexible substrate portion | Satoshi Shimada, Shinji Ohyama, Manabu Sato, Masahiko Ibamoto, Nobuyoshi Tsuboi +3 more | 1990-06-26 |
| 4912395 | Testable LSI device incorporating latch/shift registers and method of testing the same | Toshifumi Ishii, Yasushi Kohno | 1990-03-27 |
| 4862440 | Optical head with optical beam control using acoustic wave device | Norifumi Miyamoto, Nobuyoshi Tsuboi, Satoshi Shimada, Hiroshi Sasaki, Hiroaki Koyanagi +1 more | 1989-08-29 |
| 4860050 | Developing replenisher material for use in image forming device | Tsuneo Kurotori, Manabu Mochizuki, Kenzo Ariyama, Shinichi Kuramoto, Yoshihiro Sugiyama +3 more | 1989-08-22 |
| 4841514 | Optical recording method and apparatus using two fight spots | Nobuyoshi Tsuboi, Atsumi Watanabe, Satoshi Shimada, Hiroshi Sasaki | 1989-06-20 |
| 4811328 | Optical recording and reproducing device | Tetsuo Ito, Hiroshi Sasaki, Satoshi Shimada, Norifumi Miyamoto, Nobuyoshi Tsuboi +2 more | 1989-03-07 |
| 4808313 | Liquid separation membrane for pervaporation | Akira Michizuki, Hisashi Ogawara, Syuzo Yamashita | 1989-02-28 |
| 4773060 | Optical information recording device | Satoshi Shimada, Hiroshi Sasaki, Nobuyoshi Tsuboi, Tetsuo Ito, Hideki Nihei +3 more | 1988-09-20 |