Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5813380 | Suction control device for multiple cylinder internal combustion engine | Akira Takahashi, Toru Hashimoto, Mitsuhiro Miyake, Hideo Kakinuma, Kiyoshi Shinjyo +4 more | 1998-09-29 |
| 5314771 | Method of manufacturing color-filter-fitted board for liquid crystal display | Shinji Kanagawa, Hisao Sekine | 1994-05-24 |
| 5271816 | Oxygen sensor | Hiroshi Tanaka, Masashi Tanaka, Masaru Fukunaga | 1993-12-21 |
| 5206750 | Method of forming a color filter for a liquid crystal color display apparatus | Masanobu Aizawa, Hisao Sekine, Shinji Kanagawa | 1993-04-27 |
| 5179456 | Optical birefringence compensator | Masanobu Aizawa, Jean-Frederic Clerc, Shunji Takenaka, Shinichi Hirose | 1993-01-12 |
| 4961341 | Testing device for an oxygen sensor | Masashi Tanaka, Masaru Mikita | 1990-10-09 |
| 4837058 | Liquid crystal cell | Masanobu Aizawa, Yuzo Hisatake | 1989-06-06 |
| 4834051 | Oxygen sensor and an air-fuel ratio control apparatus of an internal combustion engine using the same | Masahi Tanaka, Masaru Mikita | 1989-05-30 |
| 4684218 | Liquid crystal color display device having two-layered electrode with pinhole connections | Masandou Aizawa, Hisao Sekine, Takeshi Yamamoto | 1987-08-04 |