Issued Patents All Time
Showing 51–75 of 131 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7094814 | Coloring composition for color filter containing colorant and color filter using the same | Hiroko Morii, Keisuke Iwasaki | 2006-08-22 |
| 7025905 | Black composite particles for semiconductor sealing material, and semiconductor sealing material using the same | Hiroko Morii, Yusuke Shimohata | 2006-04-11 |
| 7022752 | Composite particles, process for producing the same, and pigment, paint and resin composition using the same | Mineko Ohsugi, Keisuke Iwasaki, Hiroko Morii | 2006-04-04 |
| 6898916 | Weather strip | Kenji Kobayashi, Tsuyoshi Shimizu, Taketoshi Ito, Kenichi Tsuboi | 2005-05-31 |
| 6863966 | Black magnetic acicular composite particles for magnetic recording medium and magnetic recording medium using the same | Hiroko Morii, Mamoru Kamigaki, Yasuyuki Tanaka, Keisuke Iwasaki | 2005-03-08 |
| 6838218 | Black toner | Hiroko Morii, Keisuke Iwasaki | 2005-01-04 |
| 6824867 | Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same | Keisuke Iwasaki, Hiroko Morii, Mineko Ohsugi | 2004-11-30 |
| 6803104 | Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles | Keisuke Iwasaki, Yasuyuki Tanaka, Hiroko Morii | 2004-10-12 |
| 6800684 | Composite particles, and tread rubber composition, paint and resin composition using the same | Hiroko Morii, Keisuke Iwasaki, Mineko Ohsugi, Yusuke Shimohata | 2004-10-05 |
| 6767611 | Black magnetic acicular containing composite particles magnetic recording medium | Hiroko Morii, Mamoru Kamigaki, Yasuyuki Tanaka, Keisuke Iwasaki | 2004-07-27 |
| 6737211 | Color toner | Keisuke Iwasaki, Hiroko Morii | 2004-05-18 |
| 6723456 | Hematite particles aggregates, non-magnetic undercoatt layer for magnetic recording medium using the same, and magnetic recording medium having the non-magnetic undercoat layer | Keisuke Iwasaki, Seiji Ishitani, Hiroko Morii | 2004-04-20 |
| 6667120 | Magnetic recording medium, non-magnetic acicular composite particles and process for producing the particles | Keisuke Iwasaki, Hiroko Morii | 2003-12-23 |
| 6666914 | Black colorant for ink-jet printing ink, ink-jet printing ink, and aqueous pigment dispersion containing the black colorant | Hiroko Morii, Keisuke Iwasaki | 2003-12-23 |
| 6638618 | Black composite iron oxide pigment, and paint and resin composition using the same | Yusuke Shimohata, Mineko Ohsugi, Hiroko Morii | 2003-10-28 |
| 6638675 | Black magnetic toner | Hiroko Morii, Yasuyuki Tanaka, Seiji Ishitani | 2003-10-28 |
| 6623557 | Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particles | Hiroko Morii, Keisuke Iwasaki | 2003-09-23 |
| 6596071 | Organic and inorganic composite pigments, and paint and resin composition using the same | Keisuke Iwasaki, Mineko Ohsugi, Yusuke Shimohata, Hiroko Morii | 2003-07-22 |
| 6569530 | Magnetic recording medium and magnetic composite particles or magnetic recording medium | Keisuke Iwasaki, Mamoru Kamigaki, Hiroko Morii | 2003-05-27 |
| 6562532 | Black magnetic toner and black magnetic composite particles therefor | Hiroko Morii, Yasuyuki Tanaka, Seiji Ishitani | 2003-05-13 |
| 6544647 | Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same | Keisuke Iwasaki, Hiroko Morii, Mineko Ohsugi | 2003-04-08 |
| 6531211 | Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the same | Hiroko Morii, Mamoru Kamigaki, Yasuyuki Tanaka, Keisuke Iwasaki | 2003-03-11 |
| 6511733 | Magnetic recording medium containing specific non-magnetic composite particles of coated hematite particles | Mamoru Kamigaki, Hiroko Morii | 2003-01-28 |
| 6490833 | Weather strip for movable roof | Teruhito Goto, Akira Matsuura, Yasuo Oyama, Kotaro Oami | 2002-12-10 |
| 6475687 | Magnetic composite particles for black magnetic toner and black magnetic toner using the same | Yusuke Shimohata, Keisuke Iwasaki, Hiroko Morii | 2002-11-05 |