Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D438891 | Cleaning cartridge | Hirohisa Hoshino, Hiroyuki Ohtsuka, Hidenobu Kondo, Yasuhito Takahashi | 2001-03-13 |
| D435061 | Oil cartridge | Hiroyuki Ohtsuka, Hidenobu Kondo, Hirohisa Hoshino, Yasuhito Takahashi | 2000-12-12 |