Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6266077 | Method of compensating for output variations in a printing head | — | 2001-07-24 |
| 5946022 | LED head | — | 1999-08-31 |
| 5774165 | Light emission intensity width compensating method of LED print head and apparatus thereof | Norio Nakajima, Hisashi Tsukagoshi, Yoshihisa Aikoh | 1998-06-30 |
| 5167458 | Wire driving mechanism | Hirokazu Andou, Masahiro Tatsukami, Jiro Tanuma, Hiroshi Kikuchi, Tatsuya Koyama +1 more | 1992-12-01 |
| 5141341 | Wire dot print head having a bipartite partitioning sheet | Tatsuya Koyama, Kiyoshi Ikeda | 1992-08-25 |
| 4913569 | Wire-type printing head | Tatsuya Koyama, Tetsuhiro Yamada, Hirokazu Ando | 1990-04-03 |
| 4820065 | Wire-type printing head | Tatsuya Koyama, Tetsuhiro Yamada, Hirokazu Andou | 1989-04-11 |