Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878873 | Doll toy | Hidehiko Yamaguchi, Kouichi Minami | 1989-11-07 |
| 4869623 | Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method | Hajime Takeshita, Takahiro Iwase, Naofumi Masuda, Takuo Sibata, Hiroyuki Mochizuki +2 more | 1989-09-26 |
| 4846542 | Optical switch matrix | Hideaki Okayama, Akio Matoba, Issei Asabayashi, Kiyoshi Nagai, Ryoko Shibuya | 1989-07-11 |
| 4839099 | Fire-retardant for woody materials | Kiyoshi Umehara, Hisaomi Yamamoto, Tsutomu Imai | 1989-06-13 |
| 4813905 | Illumination mechanism for a toy | Hidehiko Yamaguchi, Kouich Minami | 1989-03-21 |
| 4806388 | Method and apparatus for coating metal part with synthetic resin | Hiroyuki Mochizuki, Shigenori Tamaki, Takahiro Iwase, Naofumi Masuda, Yoshio Taguchi | 1989-02-21 |
| 4806387 | Method for coating metal part with synthetic resin | Shigenori Tamaki, Hiroyuki Machizuki, Takahiro Iwase, Naofumi Masuda | 1989-02-21 |
| 4800770 | Rack-and-pinion type steering gear for automotive vehicles | Iwao Tanimoto, Atsushi Watanabe, Hiroaki Shinto | 1989-01-31 |