Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7566839 | Contact-breaker device, circuit and apparatus comprising the same, and method for assembling contact-breaker device | Kimihiro Saeki, Akira Ikegami, Keisabro Tozawa, Yukito Kohno, Kiyoshi Kobayashi +2 more | 2009-07-28 |
| 6341400 | Toothbrush | Kiyoshi Kobayashi, Yukito Kouno, Norihiro Hukuba | 2002-01-29 |
| 5548861 | Adhering cleaning tool | — | 1996-08-27 |
| 5406664 | Toothbrush | — | 1995-04-18 |
| D329141 | Electronic toothbrush | — | 1992-09-08 |
| 5134743 | Toothbrush for controlling brushing-stroke | — | 1992-08-04 |
| 5115533 | Toothbrush with voltage tester | — | 1992-05-26 |
| D317831 | Toothbrush | — | 1991-07-02 |
| 5003250 | Voltage testing device for electric tooth-brush | — | 1991-03-26 |
| 4726806 | Electric tooth-brush | — | 1988-02-23 |
| D290552 | Toothbrush | — | 1987-06-30 |
| 4458374 | Electric tooth brush holder | — | 1984-07-10 |
| D273723 | Electric toothbrush holder | Nobuji Nakamura | 1984-05-08 |
| D259952 | Handheld lighted mirror device for inspecting the mouth or other parts of the human body | Nobuji Nakamura | 1981-07-21 |
| 4220985 | Illumination device | — | 1980-09-02 |
| 4212105 | Inspection device for cavities | — | 1980-07-15 |