Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9127168 | Magnetic iron oxide fine particles, and magnetic particle-containing water dispersion and process for producing the same | Tomoko Okita | 2015-09-08 |
| 7863353 | Paving resin composition, paving asphalt composition, and method for producing paving asphalt composition | Atsushi Maeda, Ryoma Masui | 2011-01-04 |
| 7670676 | Pharmaceutical raw material | Nanao Horiishi, Hirofumi Kawasaki, Shinji Uemoto, Hiromitsu Misawa, Seiichi Takahashi | 2010-03-02 |
| 6506531 | Magnetic carrier | Hiroomi Kakihara, Masaaki Fukugauchi, Kenji Okada, Yushi Mikuriya, Kazumi Yoshizaki | 2003-01-14 |
| 6485877 | Magnetic particles and magnetic carrier for electrophotographic developer | — | 2002-11-26 |
| 6465390 | Porous composite particles and process for producing the same | Tomoko Okita | 2002-10-15 |
| 6459012 | Method for treating organohalogen compound-containing soil or ash | Tomoyuki Imai, Satoshi Hatakeyama, Toshiki Matsui, Yasuhiko Fujii, Tomoko Okita | 2002-10-01 |
| 6106987 | Magnetic particles and magnetic carrier for electrophotographic developer | Hiroshi Akai | 2000-08-22 |
| 6087057 | Magnetic particles and magnetic carrier for electrophotographic developer | Hiroshi Akai | 2000-07-11 |
| 6042982 | Electrophotographic magnetic carrier and process for producing the same | — | 2000-03-28 |
| 6017667 | Spherical-like composite particles and electrophotographic magnetic carrier | — | 2000-01-25 |
| 5731085 | Spherical magnetic composite particles | Shigeru Takaragi | 1998-03-24 |
| 5654120 | Magnetic carrier for electrophotography | Hiroomi Kakihara, Masaaki Fukugauchi | 1997-08-05 |
| 5118587 | Magnetic particles used for electrostatic latent image developer and process for producing the same | Shigeru Takaragi, Kazuo Fujioka, Tetsuro Toda | 1992-06-02 |
| 5108862 | Composite carrier particles for electrophotography and process for producing the same | Souichiro Kishimoto, Tsutomu Sakaida, Yoshiaki Echigo, Keiichi Asami, Tetsuro Toda +3 more | 1992-04-28 |
| 5079303 | Surface treatment agent for paper | Tsuyoshi Ikeda, Tsugumi Ikegaya | 1992-01-07 |
| 4654386 | Ketene dimer-acrylamide polymer aqueous dispersion | Tetsuya Hara, Keigo Goshiki | 1987-03-31 |