Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996625 | Power source unit for image recording apparatus | Utami Soma, Yasufumi Koseki | 1991-02-26 |
| 4973799 | Printed circuit board for use with an image forming apparatus | Utami Soma, Yasufumi Koseki | 1990-11-27 |