Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10299561 | Makeup tool | Seiichi Maruyama, Shigeki Ooba | 2019-05-28 |
| 9924777 | Liquid substance advancing container | Mitsuru Endou, Atsushi Nakashima, Nobuyuki Nakajima, Yuusuke Kyogoku, Tetsuaki Akaishi +2 more | 2018-03-27 |
| 9782199 | Puncture device | Satoru Sumiyoshi, Atsushi Nakashima, Yuusuke Kyogoku | 2017-10-10 |
| 8292530 | Knock type writing instrument | Yoshiharu Namiki | 2012-10-23 |
| 7938592 | Writing implement | — | 2011-05-10 |
| 7931415 | Knock-type writing instrument having a shock-relaxing device | Yoshiharu Namiki | 2011-04-26 |
| 6145969 | Method for refilling an ink cartridge | — | 2000-11-14 |
| 5969734 | Method and apparatus for refilling an ink cartridge | — | 1999-10-19 |
| 5878668 | Process for preparing stamp | Yoichi Ando, Hajime Toda, Koichi Hirano | 1999-03-09 |
| 5741459 | Process for preparing stamp | Yoichi Ando, Hajime Toda, Koichi Hirano | 1998-04-21 |
| 5611279 | Process of producing a printing plate for a stamp | Yoichi Ando, Fumitoshi Nakamura, Haruhito Shiraishi, Hajime Toda, Susumu Suzuki +1 more | 1997-03-18 |