Issued Patents All Time
Showing 51–75 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6283888 | Infinite speed ratio transmission device | — | 2001-09-04 |
| 6262964 | Disc player with objective lens arranged in a zigzag pattern | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 2001-07-17 |
| 6258003 | Infinite speed ratio transmission device and assembly method thereof | Masaki Nakano | 2001-07-10 |
| 6254959 | Position-retaining material and method of manufacturing position-retaining device utilizing position-retaining material | Naomitsu Takekawa | 2001-07-03 |
| 6239086 | Refrigerating machine oil | Satoshi Suda, Yuji Shimomura | 2001-05-29 |
| 6231782 | Refrigerator oil composition | Yuji Shimomura, Satoshi Suda | 2001-05-15 |
| 6228282 | Refrigerator oil composition | Yuji Shimomura, Satoshi Suda | 2001-05-08 |
| 6215198 | Generating control device for hybrid vehicle | Eiji Inada, Shinichirou Kitada, Toshio Kikuchi, Takeshi Aso, Yuutarou Kaneko | 2001-04-10 |
| 6137250 | Controller for electric vehicle and electric vehicle using the same | Shinichirou Kitada, Toshio Kikuchi, Eiji Inada, Ryuichi Idoguchi, Takeshi Asou +1 more | 2000-10-24 |
| 6049654 | Recording medium playing apparatus for reproducing same time information group | Yoshiki Furuta, Sumio Hosaka, Atsushi Kimura, Hiroshi Horii | 2000-04-11 |
| 6027777 | Forming material | Wataru OKUYAMA, Nobuyasu Nakasugi, Shozo Oonishi | 2000-02-22 |
| 5962927 | Method of controlling generator driving engine and system for embodying the same | Eiji Inada, Shinichirou Kitada, Toshio Kikuchi, Ryuichi Idoguchi, Takeshi Aso +1 more | 1999-10-05 |
| 5953308 | Disc player with alternating ascending/descending guide devices | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukuda +1 more | 1999-09-14 |
| 5945808 | Hybrid electric vehicle with battery management | Toshio Kikuchi, Shinichiro Kitada, Eiji Inada, Takeshi Aso, Ryuichi Idoguchi +1 more | 1999-08-31 |
| 5848049 | Disc player with parallel objective lenses | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1998-12-08 |
| 5734216 | Magnet rotor for synchronous motor | Hiyoshi Yamada, Shigenori Kinoshita, Takao Yanase, Kenji Endo | 1998-03-31 |
| 5677904 | Disc player | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-10-14 |
| 5677798 | Image forming lens system | Takayuki Ito, Takashi Iizuka | 1997-10-14 |
| 5671201 | Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-09-23 |
| 5646921 | Method and apparatus for reproducing information recorded on CLV disc type record medium | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-07-08 |
| 5619484 | Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-04-08 |
| 5572366 | Variable power optical system for copying machine | — | 1996-11-05 |
| 5568322 | Image forming lens system | Kae Azami | 1996-10-22 |
| 5568325 | Achromatic lens system | Takayuki Ito | 1996-10-22 |
| 5367406 | Optical device with inherent focusing error correction | Minoru Suzuki | 1994-11-22 |