Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6100943 | Vehicular display device for directly and indirectly displaying information | Nobuaki Koide, Yasuyo Matsumoto, Kensaku Takada | 2000-08-08 |
| 6011518 | Vehicle antenna | Hiroshi Yamagishi, Masahiro Tokunaga | 2000-01-04 |
| 5999296 | Optical head of optical beacon | — | 1999-12-07 |
| 5526115 | Light source-detection fiber-optic gyroscope using depolarized beam propagation | — | 1996-06-11 |
| 5455676 | Method of detecting a signal and modulation coefficient of a phase-modulated fiber-optic gyroscope based on a difference in the duration of multiple subwaves in a modulation period | Yasuhiko Nishi | 1995-10-03 |
| 5444533 | Fiber-optic gyroscope obtaining a signal from a perturbed light source | Takaki Iwashita, Akihiro Ooka | 1995-08-22 |
| 5386484 | Optical fiber type polarizer | Akihiro Ooka, Kenji Kawamura, Katsuaki Itoh, Takaki Iwashita, Yasuhiko Nishi +2 more | 1995-01-31 |
| 5371595 | Fiber-optic gyroscope using single birefringent material for depolarizer | Takaki Iwashita | 1994-12-06 |
| 5365339 | Two depolarizer fiber-optic gyroscope that eliminates interference between the depolarizers | Yasuhiko Nishi | 1994-11-15 |
| 5335064 | Fiber-optic gyroscope for measuring velocity of an object | Yasuhiko Nishi | 1994-08-02 |
| 5245407 | Fiber-optic gyroscope with depolarizers in a fiber coil located between a light source and a polarizer | Takaki Iwashita | 1993-09-14 |
| 4863273 | D.C. component controlled fiber optic gyroscope | — | 1989-09-05 |
| 4641913 | Optical integrated circuit utilizing the piezoelectric and photoconductive properties of a substrate | Yoshikazu Nishiwaki | 1987-02-10 |
| 4569588 | Light frequency change detecting method and apparatus | Yoshikazu Nishiwaki | 1986-02-11 |
| 4517280 | Process for fabricating integrated optics | Kenji Okamoto, Yoshikazu Nishiwaki, Shunji Matsuoka | 1985-05-14 |