Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7104712 | Roll sheet holder and tape printer | Kiyoshi Sugimoto, Keiji Seo, Akira Sago | 2006-09-12 |
| 7070348 | Roll sheet holder and tape printer | Kiyoshi Sugimoto, Akira Sago, Keiji Seo | 2006-07-04 |
| 6476558 | Mode converter and gyrotron tube provided with mode converter for converting mode of millimeter waves | Keishi Sakamoto, Yoshika Mitsunaka | 2002-11-05 |
| 5780969 | Gyrotron apparatus including reflecting cylinders which provide undesired wave absorption | Keishi Sakamoto, Masaki Tsuneoka, Tsuyoshi Kariya | 1998-07-14 |