Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10155916 | Lubricant for gas insulated switchgear, and gas insulated switchgear | Hiroyuki Akata, Tomohiro Moriyama, Kazuhiro Satou, Makoto Hirose | 2018-12-18 |
| 7820114 | Reaction container for chemical analysis with the controlled surface property | Mina Amo, Taku Sakazume, Katsuhiro Kambara | 2010-10-26 |
| 6917495 | Magnetic disk drive | Mina Ishida, Yutaka Ito, Hiroyuki Matsumoto, Hiroshi Tani | 2005-07-12 |
| 6869536 | Lubricant, magnetic disk and magnetic disk apparatus | Mina Ishida, Yutaka Ito, Hiroyuki Matsumoto, Hiroshi Tani, Heigo Ishihara | 2005-03-22 |
| 6870704 | Magnetic disc apparatus and its fabricating method | Mitsuhiro Shoda, Hiroshi Tani, Hiroyuki Matsumoto | 2005-03-22 |
| 6816341 | Hard disk drive utilizing second lubricant over a first lubricant having a phosophezine group | Hiroyuki Matsumoto, Hiroshi Tani, Mitsuhiro Shoda, Koji Sonoda, Mina Amo +1 more | 2004-11-09 |
| 6665147 | Magnetic disk drive with supply of perfluoropolyether as lubricant | Mina Ishida, Yutaka Ito, Hiroyuki Matsumoto, Hiroshi Tani | 2003-12-16 |
| 6605335 | Magnetic recording medium | Hiroshi Tani, Hiroyuki Matsumoto, Mitsuhiro Shyoda, Tomonori Kozaki, Yoko Ogawa | 2003-08-12 |
| 6555197 | Lubricant, magnetic disk and magnetic disk apparatus | Mina Ishida, Yutaka Ito, Hiroyuki Matsumoto, Hiroshi Tani, Heigo Ishihara | 2003-04-29 |
| 6323163 | Fluorocompound, lubricant, surface modifier, lubricating film, magnetic recording medium, and magnetic recording device | Hiroshi Sasaki, Mitsuyoshi Shouji, Tomoe Takamura, Mina Ishida, Yutaka Ito +1 more | 2001-11-27 |
| 6296917 | Magnetic disk and magnetic recording/reproduction apparatus | Mitsuyoshi Shouji, Tomoe Takamura, Hiroshi Sasaki, Shuji Imazeki, Yutaka Ito | 2001-10-02 |
| 5985403 | Magnetic recording medium and magnetic recording reproducer | Mitsuyoshi Shoji, Tomoe Takamura, Shuji Imazeki, Yutaka Ito, Hisashi Morooka +2 more | 1999-11-16 |
| 5835305 | Magnetic disk apparatus employing liquid bearing type or physical contact type magnetic head slider | Tetsuya Hamaguchi, Yoshihiro Shiroishi, Yukio Kato, Masaaki Matsumoto, Hiromitsu Tokisue +1 more | 1998-11-10 |
| 5830834 | Ammonium carboxylate type fluorine-containing compound, solid surface modifier containing the same and magnetic recording medium using the same | Mitsuyoshi Shoji, Hiroshi Sasaki, Yutaka Ito, Shigeki Komatsuzaki, Hiroyuki Matsumoto | 1998-11-03 |
| 5820964 | Magnetic disk, and magnetic disk apparatus | Shuji Imazeki, Yutaka Ito, Yuko Morita, Mitsuyoshi Shouji, Hisashi Morooka +5 more | 1998-10-13 |
| 5549835 | Apparatus equipped with a cooling block unit having sliding parts and a compound used to the same | Takao Uematsu, Mitsuyoshi Shoji, Shigeki Komatsuzaki, Yutaka Ito, Atsushi Morihara +3 more | 1996-08-27 |
| 5536578 | Magnetic recording medium comprising a protective layer and a layer of ammonium carboxylate fluorine-containing compound | Mitsuyoshi Shoji, Hiroshi Sasaki, Yutaka Ito, Shigeki Komatsuzaki, Hiroyuki Matsumoto | 1996-07-16 |
| 5456980 | Ammonium carboxylate lubricant and magnetic recording medium using the same | Yuko Murakami, Mitsuyoshi Shoji, Juichi Arai, Yutaka Ito | 1995-10-10 |
| 5346633 | Method for surface treatment of a body, surface treatment agent, surface treated body, surface treated members, and apparatus being furnished with same | Atsushi Morihara, Mitsuyoshi Shoji, Koji Sato, Yutaka Ito, Ryuichi Kaji +1 more | 1994-09-13 |
| 5252418 | Electrophotographic photoreceptor with protruding inorganic insulator pieces and an electrophotographic apparatus utilizing the same | Fuminori Ishikawa, Akira Sato, Kunihiro Tamahashi, Masatoshi Wakagi, Katsumi Tamura +6 more | 1993-10-12 |
| 5219651 | Magnetic recording apparatus comprising a magnetic recording medium and a magnetic head each coated with a coating of a binder and a specified fluorolubricant | Mitsuyosi Shoji, Yutaka Ito, Shigeki Komatsuzaki, Fumio Nakano | 1993-06-15 |
| 5204202 | Electrophotographic photosensitive element comprising a protective layer with a porous surface impregnated with lubricant | Fuminori Ishikawa, Kunihiro Tamahashi, Shigeharu Onuma, Masatoshi Wakagi, Masanobu Hanazono +4 more | 1993-04-20 |
| 5157066 | Fluoroalkyl ether, surface modifying composition and method for modifying surface | Mitsuyoshi Shoji, Yutaka Ito, Shigeki Komatsuzaki, Akio Mukoh | 1992-10-20 |
| 5128435 | Magnetic recording medium based on epoxy resins modified by isocyanates with poly(perfluoroether) backbones | Mitsuyoshi Shoji, Yutaka Ito, Shigeki Komatsuzaki, Toshikazu Narahara | 1992-07-07 |
| 5073466 | Electrophotographic member containing a fluorine-containing lubricating agent and process for producing the same | Fuminori Ishikawa, Kunihiro Tamahashi, Shigeharu Onuma, Masatoshi Wakagi, Masanobu Hanazono +5 more | 1991-12-17 |