Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8687929 | Optical collimator, optical connector using same and holding member for optical collimator | Naohiko Moriya, Hitoshi Suzuki, Kiyoshi Iwamoto | 2014-04-01 |
| 8142091 | Writing implement | — | 2012-03-27 |
| 7223037 | Production processes for writing instrument and ink occlusion body | Kazuhiko Furukawa | 2007-05-29 |
| 6974272 | Writing instrument cap | Kazuhiko Furukawa | 2005-12-13 |
| 6966718 | Writing instrument, writing instrument cap and method of assembly of a writing instrument cap | Kazuhiko Furukawa | 2005-11-22 |
| 6769827 | Collector type writing implement | Kazuhiko Furukawa | 2004-08-03 |
| 6619870 | Collector type writing implement | Kazuhiko Furukawa | 2003-09-16 |
| 6619871 | Collector type writing instrument | Kazuhiko Furukawa | 2003-09-16 |
| 6602012 | Collector type writing instrument | Kazuhiko Furukawa | 2003-08-05 |
| 6588963 | Collector type writing instrument | Kazuhiko Furukawa | 2003-07-08 |
| 6435747 | Double ended direct-feed type writing implement | Kazuhiko Furukawa, Hiroaki Koyama, Takeshi Kobayashi, Yosuke Mito | 2002-08-20 |
| 6371676 | Collector for a writing implement | Kazuhiko Furukawa | 2002-04-16 |