Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9393082 | Viscous material container having annularly contacting piston | Ryouji Takei, Toshiyuki Nakatsuka, Katsuya Kimoto, Hideto Kasaba | 2016-07-19 |
| 9345555 | Viscous material container with expandable bend | Ryouji Takei, Toshiyuki Nakatsuka, Katsuya Kimoto, Hideto Kasaba | 2016-05-24 |
| 9271807 | Nozzle mounting structure of component container | Ryouji Takei, Toshiyuki Nakatsuka, Shuji Sakamoto, Satoshi Takano, Satoshi Kawahara | 2016-03-01 |
| 9162199 | Two-component mixing container including piston using spring engagement | Ryouji Takei, Toshiyuki Nakatsuka, Shuji Sakamoto, Satoshi Takano, Satoshi Kawahara | 2015-10-20 |
| 9156014 | Two-component mixing container with communication passage of liquid-tight structure | Ryouji Takei, Toshiyuki Nakatsuka, Shuji Sakamoto, Satoshi Takano, Satoshi Kawahara | 2015-10-13 |
| 6705789 | Mechanical pencil | Shigeki Maruyama, Toshiro Henmi | 2004-03-16 |
| D421770 | Mechanical pencil | — | 2000-03-21 |
| 5085534 | Mechanical pencil lead protection pipe with protuberance | Kamakura Kenichi, Nobuo Murasawa, Yuichi Miyahara, Hiroaki Okabayashi, Tetsuya Sugiyama +2 more | 1992-02-04 |