Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10126678 | Toner, toner housing unit, image forming apparatus, and image forming method | Shizuka Hashida, Hiroshi Yamashita, Minoru Masuda, Hiroshi Yamada | 2018-11-13 |
| 9964873 | Toner, developer, image forming apparatus and toner housing unit | Hiroshi Yamashita, Minoru Masuda, Hiroshi Yamada, Shizuka Hashida | 2018-05-08 |
| 8697326 | Method of manufacturing a carrier, a carrier, a development agent, and a process cartridge | Kousuke Suzuki, Shinichiro Yagi, Masato Taikoji | 2014-04-15 |
| 8178272 | External additive, method of manufacturing same and toner | Masakazu Nakada, Hideyuki Ueda | 2012-05-15 |
| 7201938 | Thermosensitive stencil paper and method of producing the same | Fumiaki Arai, Takehiko Iwaoka, Yuji Natori | 2007-04-10 |
| 6889605 | Heat-sensitive stencil, process of fabricating same and printer using same | Yuji Natori, Fumiaki Arai, Tetsuo Tanaka, Hiroshi Tateishi | 2005-05-10 |
| 6854493 | Apparatus and method of filling microscopic powder | Hideo Ichikawa, Masakazu Nakada | 2005-02-15 |
| 6403150 | Heat-sensitive stencil and method of fabricating same | Masayuki Ohta, Takehiko Iwaoka, Fumiaki Arai, Hiroshi Tateishi, Hideki Ono +2 more | 2002-06-11 |
| 6372332 | Thermosensitive stencil paper and method of producing the same | Fumiaki Arai, Takehiko Iwaoka, Yuji Natori | 2002-04-16 |
| 6096374 | Heat-sensitive stencil and method of fabricating same | Masayuki Ohta, Takehiko Iwaoka, Fumiaki Arai, Hiroshi Tateishi, Hideki Ono +2 more | 2000-08-01 |
| 6092461 | Heat-sensitive stencil, process of fabricating same and method of producing printing master using same | Tetsuo Tanaka, Hiroshi Tateishi, Fumiaki Arai, Hiroshi Adachi, Kohichi Ohshima | 2000-07-25 |
| 6050183 | Heat-sensitive stencil, process of fabricating same and method of producing printing master using same | Tetsuo Tanaka, Hiroshi Tateishi, Fumiaki Arai, Hiroshi Adachi, Kohichi Ohshima | 2000-04-18 |
| 5924360 | Smooth stencil base sheet, method of producing a printing master from the stencil base sheet and method of performing stencil printing | Hiroshi Adachi, Kouichi Ohshima, Fumiaki Arai, Hiroshi Tateishi, Tetsuo Tanaka | 1999-07-20 |
| 5843560 | Heat-sensitive stencil and method of fabricating same | Masayuki Ohta, Takehiko Iwaoka, Fumiaki Arai, Hiroshi Tateishi, Hideki Ono +2 more | 1998-12-01 |
| 5691099 | Thermal developing type diazo copying material utilizing water soluble quanidine salt | Shigeru Kusakata, Kazuo Matsuda, Naohito Shimota | 1997-11-25 |
| 5556733 | Thermal development diazo copying material | Shigeru Kusakata | 1996-09-17 |
| 5478689 | Thermal development diazo copying material | Shigeru Kusakata | 1995-12-26 |
| 4659644 | Diazo-type thermosensitive recording material with hydrazone coupler and chelating metal compound | Takayuki Hoshina, Michihisa Takahashi, Masanaka Nagamoto | 1987-04-21 |
| 4304831 | Black-color forming two-component type diazo copying material | Tsutomu Matsuda | 1981-12-08 |
| 4225662 | Diazo copying material | Tsutomu Matsuda, Chihiro Hayashi | 1980-09-30 |