Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7326762 | Copolymer having reactive silicon-containing group and organic-inorganic hybrid polymeric material | Motoomi Arakawa, Masayuki Shimada, Shigehiro Sasao | 2008-02-05 |
| 7157542 | Copolymer having reactive silicon-containing group and organic-inorganic hybrid polymeric material | Motoomi Arakawa, Masayuki Shimada, Shigehiro Sasao | 2007-01-02 |
| 6965001 | Organic-inorganic hybrid polymer materials with compositional gradient, and processes for preparing the same | Motoomi Arakawa, Yasuyuki Agari, Masayuki Shimada | 2005-11-15 |
| 6818736 | Polymeric material, molded product and methods for their production | Manabu Shioyama, Masayuki Shimada, Yasuyuki Agari, Motoomi Arakawa | 2004-11-16 |
| 6476098 | Organic-inorganic composite material and process for preparing the same | Motoomi Arakawa, Yasuyuki Agari, Masayuki Shimada | 2002-11-05 |
| 6395341 | Organic-inorganic hybrid polymer materials with compositional gradient, and processes for preparing the same | Motoomi Arakawa, Yasuyuki Agari, Masayuki Shimada | 2002-05-28 |
| 6228796 | Organic-inorganic hybrid materials and processes for preparing the same | Motoomi Arakawa, Yasuyuki Agari, Masayuki Shimada | 2001-05-08 |
| 6197467 | Charge control agent, manufacturing process therefor and toner | Shun-ichiro Yamanaka, Masashi Yasumatsu | 2001-03-06 |
| 6153735 | Monoazo metal compound, composition thereof, charge control agent, toner and powdery paint | Shuji Sugawara, Shun-ichiro Yamanaka, Tohru Tsuruhara, Masashi Yasumatsu | 2000-11-28 |
| 6103854 | Organic-inorganic hybrid polymer material and process for preparing the same | Motoomi Arakawa, Yasuyuki Agari, Masayuki Shimada | 2000-08-15 |
| 6060615 | Positively-chargeable charge control agent and toner for developing electrostatic images | Tohru Tsuruhara | 2000-05-09 |
| 5990332 | Metal compound of aromatic hydroxycarboxylic acid, charge control agent, toner, and powdery paint | Tohru Tsuruhara, Shun-ichiro Yamanaka, Shuji Sugawara, Masashi Yasumatsu | 1999-11-23 |
| 5981130 | Positively-chargeable charge control agent and toner for developing electrostatic images | Tohru Tsuruhara | 1999-11-09 |
| 5976749 | Metal compound of aromatic hydroxycarboxylic acid, charge control agent, toner, and powdery paint | Tohru Tsuruhara, Shun-ichiro Yamanaka, Shuji Sugawara, Masashi Yasumatsu | 1999-11-02 |
| 5952145 | Calix arene charge control agent and toner for developing electrostatic images | Shun-ichiro Yamanaka | 1999-09-14 |
| 5843611 | Monoazo metal compound, composition thereof, charge control agent, toner and powdery paint | Shuji Sugawara, Shun-ichiro Yamanaka, Tohru Tsuruhara, Masashi Yasumatsu | 1998-12-01 |
| 5736289 | Toner for developing electrostatic images | Shun-ichiro Yamanaka | 1998-04-07 |
| 5518852 | Negative charge control agent and toner for developing electrostatic image | Shun-ichiro Yamanaka, Shuji Sugawara | 1996-05-21 |
| 5501934 | Chargeable resin powder | Shun-ichiro Yamanaka, Shuji Sugawara | 1996-03-26 |
| 5501932 | Charge control agent and toner for developing electrostatic images | Shuji Sugawara, Shun-ichiro Yamanaka | 1996-03-26 |
| 5470685 | Toner for developing electrostatic images | Shuji Sugawara, Shun-ichiro Yamanaka | 1995-11-28 |
| 5407774 | Charge control agent and positively chargeable toner for developing electrostatic images | Chiemi Matsushima, Tetsuji Kihara, Shun-ichiro Yamanaka | 1995-04-18 |
| 5318883 | Charge control agent and tower for developing electrostatic images | Schunichiro Yamanaka, Shuji Sugawara | 1994-06-07 |