Issued Patents All Time
Showing 101–125 of 130 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5513307 | Video game with switchable collision graphics | Yuji Naka | 1996-04-30 |
| 5470080 | Multi-player video game apparatus with single screen mode and split screen mode | Yuji Naka | 1995-11-28 |
| 5469416 | Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording medium | Tamotsu Yamagami, Yoichiro Sako | 1995-11-21 |
| 5446381 | Optical voltage electric field sensor | Hisakazu Okajima | 1995-08-29 |
| 5411270 | Split-screen video game with character playfield position exchange | Yuji Naka | 1995-05-02 |
| 5411272 | Video game with spiral loop graphics | Yuji Naka | 1995-05-02 |
| 5405151 | Multi-player video game with cooperative mode and competition mode | Yuji Naka | 1995-04-11 |
| 5355181 | Apparatus for direct display of an image on the retina of the eye using a scanning laser | Koji Ashizaki, Senri Miyaoka, Sakuya Tamada | 1994-10-11 |
| RE34719 | Optical recording apparatus for forming grooves and pits in an optically recordable disc | Sohmei Endoh | 1994-09-06 |
| 5290246 | Piercing needle | Kouhei Hayashi | 1994-03-01 |
| 5248249 | Three-dimensional structure forming apparatus provided with a liquid-level control system for a main resin tank | Kazumine Itoh | 1993-09-28 |
| 5242411 | Piercing needle having hydrophobic filter vent | Kouhei Hayashi | 1993-09-07 |
| 5223766 | Image display device with cathode panel and gas absorbing getters | Akira Nakayama, Junichi Inoue | 1993-06-29 |
| 5210800 | Optical sensor and method for producing the same | Yuji Asai | 1993-05-11 |
| 5202629 | Optical magnetic-field sensor having an integrally bonded magnetooptical element, polarizer, analyzer and substrate | Shoji Seike, Hisakazu Okajima | 1993-04-13 |
| 5185732 | Recording medium and recording and reproducing apparatus employing the recording medium | Hiroshi Ogawa, Yoichiro Sako | 1993-02-09 |
| 5151813 | Method and apparatus for producing three-dimensional objects | Kazumine Itoh | 1992-09-29 |
| 5135376 | Optical-disk manufacturing device | Hidetoshi Watanabe, Hirotsugu Suzuki | 1992-08-04 |
| 5126994 | Method and apparatus for controlling and detecting recording laser beam | Hiroshi Ogawa, Shinji Katsuramoto | 1992-06-30 |
| 5116210 | Optical-disk manufacturing apparatus | Hidetoshi Watanabe, Hirotsugu Suzuki | 1992-05-26 |
| 5112205 | Optical-disk manufacturing apparatus | Hidetoshi Watanabe, Hirotsugu Suzuki | 1992-05-12 |
| 5087184 | Optical-disk manufacturing device | Hidetoshi Watanabe, Hirotsugu Suzuki | 1992-02-11 |
| 5079430 | Ultraviolet radiation projector and optical image forming apparatus | Nobutomo Umeki, Katsutoshi Ohno, Kazumine Itoh | 1992-01-07 |
| 4982398 | Optical recording apparatus for forming grooves and pits in an optically recordable disc | Sohmei Endoh | 1991-01-01 |
| 4848294 | Carburetor heating device for small snowmobile | — | 1989-07-18 |