Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7566839 | Contact-breaker device, circuit and apparatus comprising the same, and method for assembling contact-breaker device | Akira Ikegami, Keisabro Tozawa, Yukito Kohno, Kiyoshi Kobayashi, Toshio Tobe +2 more | 2009-07-28 |
| 4573230 | Vertically moving mechanism for rotor brush in manual cleaner | Kiyoshi Kobayashi | 1986-03-04 |