Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6172447 | Piezoelectric transformer device | Katsuyuki Ishikawa, Masaaki Toyama, Masako Kataoka, Toru Ezaki, Takahiro Yamakawa +1 more | 2001-01-09 |
| 5927190 | Printing machine | Kenji Yoshimoto, Masami Kanehira, Yoshinori Tanaka | 1999-07-27 |