Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7322501 | Fastener driving tool | Yoshinori Ishizawa, Hiroki Kitagawa | 2008-01-29 |
| 7299959 | Urged magazine for a fastener driving tool | Yoshinori Ishizawa, Hiroki Kitagawa | 2007-11-27 |
| 7243831 | Fastener driving tool | Yoshinori Ishizawa, Hiroki Kitagawa | 2007-07-17 |
| 7156012 | Pneumatically operated fastener driving tool | Yoshiichi Komazaki, Yoshinori Ishizawa | 2007-01-02 |
| 7070748 | Non-porous spherical silica and method for production thereof | Yasuhiro Unehara, Teruo Miyakawa | 2006-07-04 |
| D519809 | Portable pneumatic nailer | Takeshi Taniguchi, Masato Sakai, Yoshinori Ishizawa, Hiroki Kitagawa | 2006-05-02 |
| 5272322 | Identification mark reading apparatus | Hiroshi Sato, Hiroyuki Hashimoto | 1993-12-21 |
| 4844809 | Method for purifying reaction solution obtained by using microbial cell, immobilized microbial cell, or immobilized enzyme | Ashina Yoshiro, Yasumasa Yamaguchi, Toshiaki Doi | 1989-07-04 |
| 4701558 | Method for purifying aqueous acrylamide solution | Yasumasa Yamaguchi | 1987-10-20 |
| 4683128 | Process for manufacturing high purity silica | Koichi Orii, Junsuke Yagi, Iwao Ohshima | 1987-07-28 |