Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4275690 | Ignition distributor | Masazumi Sone | 1981-06-30 |
| 4274695 | Device for electrically connecting spark plug to high-voltage cable | Masazumi Sone, Hiromitsu Nagae, Masami Shida, Tsutomu Kooriyama, Koji Harada | 1981-06-23 |
| 4274843 | Electrostatic type car air purifier | Masazumi Sone, Kazuhiko Suzuki | 1981-06-23 |
| 4245550 | Electronic air cleaner for passenger compartment of vehicle | Kazuhiko Suzuki, Masazumi Sone, Kazuo Hayashi | 1981-01-20 |
| 4227446 | Electronic air cleaner for passenger compartment of vehicle | Masazumi Sone, Kazuhiko Suzuki | 1980-10-14 |