Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8155568 | Toner container, production method for toner product and toner replenishing method | Kiyotaka Naito, Yoshihiko Toyoizumi | 2012-04-10 |
| 7983592 | Toner container having a sealed toner cap | Kiyotaka Naito, Yoshihiko Toyoizumi | 2011-07-19 |
| D636435 | Toner cartridge | Kiyotaka Naito | 2011-04-19 |
| D636016 | Toner cartridge | Kiyotaka Naito | 2011-04-12 |
| 7184683 | Powder container, powder contained product, powder container manufacturing method, powder contained product reusing method, toner container and toner contained product | Masahiro Yoshino, Ken Ohmura | 2007-02-27 |
| 6999705 | Powder container, powder contained product, powder container manufacturing method, powder contained product reusing method, toner container and toner contained product | Masahiro Yoshino, Yoshihiko Toyoizumi | 2006-02-14 |
| 6934495 | Fine particle storage container and fine particle storage product, toner storage container and toner storage product, and toner supplying device | Masahiro Yoshino | 2005-08-23 |
| 6731897 | Powder or toner accommodating container | Kazuaki Nagano, Masahiro Yoshino | 2004-05-04 |
| 6370349 | Toner storing container and toner replenishing device therewith | Yasuaki Tsuji, Masahiro Yoshino | 2002-04-09 |
| 6355355 | Packaging materials for electrophotographic development materials, a packaging method, and toner and developer material for electrophotographic development | Susumu Inoue, Eiichi Kijima | 2002-03-12 |
| D450081 | Toner cartridge | Yasuaki Tsuji, Masahiro Yoshino | 2001-11-06 |
| 6298885 | Powder accommodating container | Masahiro Yoshino, Yasuaki Tsuji | 2001-10-09 |
| D442986 | Toner cartridge | Yasuaki Tsuji, Masahiro Yoshino | 2001-05-29 |
| 6040105 | Electrophotographic photoreceptor, and a production method of the same | Shinichi Hamaguchi, Eiichi Kijima | 2000-03-21 |
| 5952141 | Photoreceptor drum with specified flange | Masashi Ohno | 1999-09-14 |
| 5586944 | Golf club head | Itsushi Nagamoto, Noburo Sumikawa, Tatsuya Hirakawa | 1996-12-24 |
| 4964640 | Iron club head for golf | Toyohiko Tadokoro, Masaki Fujimura | 1990-10-23 |
| 4928972 | Iron club head for golf | Toyohiko Tadokoro, Masaki Fujimura | 1990-05-29 |
| 4883623 | Method for producing a golf club head | Itsushi Nagamoto, Tomoharu Yamashita | 1989-11-28 |
| 4859554 | Multilayer photoreceptor | Toshinori Yamazaki, Eiichi Sakai, Hiroyuki Nomori | 1989-08-22 |
| 4824116 | Golf club head | Itsushi Nagamoto, Ryohei Tajima | 1989-04-25 |
| 4803023 | Method for producing a wood-type golf club head | Koichi Enomoto | 1989-02-07 |
| 4794064 | Amorphous silicon electrophotographic receptor having controlled carbon and boron contents | Toshinori Yamazaki, Hiroyuki Nomori | 1988-12-27 |
| 4740345 | Method for producing an iron golf club head | Yoichi Nagasaki, Toyohiko Tadokoro, Masaki Fujimura | 1988-04-26 |
| 4714577 | Method for producing a wood-type golf club head | Itsushi Nagamoto, Ryohei Tajima | 1987-12-22 |