Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11961819 | Wire bonding apparatus | Naoki Sekine | 2024-04-16 |
| 11702008 | Vehicle outer mirror device, vehicle outer mirror system, and method for controlling vehicle outer mirror device | Takahiro Tsuzuki, Katsushi OSEKI | 2023-07-18 |
| 9793236 | Wire-bonding apparatus and method of manufacturing semiconductor device | Naoki Sekine, Motoki Nakazawa | 2017-10-17 |
| 9379086 | Method of manufacturing semiconductor device | Shinji Kumamoto, Naoki Sekine, Motoki Nakazawa | 2016-06-28 |
| 9337166 | Wire bonding apparatus and bonding method | Yoshihito Hagiwara, Naoki Sekine, Koichi Takahashi, Motoki Nakazawa | 2016-05-10 |
| 5547704 | Method for producing a magnetic disk | Ryuji Shirahata | 1996-08-20 |
| 5191497 | Magnetic disk pack and magnetic disk recording/reproducing apparatus with improved head touch | Hitoshi Saito, Toshihiko Matsuo, Takashi Matsumoto | 1993-03-02 |
| 5178925 | Magnetic disc having a magnetic layer with a glass transition temperature of at least 75.degree. C. which contains magnetic metal powder of specified pH and surface area | Yasushi Endo, Mikihiko Kato, Toshio Kawamata | 1993-01-12 |
| 5093172 | Magnetic recording medium comprising a vinyl chloride copolymer containing a polar group and a polyurethane containing a polar group and specified aromatic or alicyclic units | Mikihiko Kato, Yasushi Endo, Hiroshi Hashimoto | 1992-03-03 |
| 5091238 | Floppy disk comprising a cellulosic resin with a polar group in a side chain and perromagnetic particles of a specific surface area | Mikihiko Kato, Hiroshi Hashimoto, Yasushi Endo | 1992-02-25 |
| 5051287 | Magnetic disk having a magnetic layer comprising a binder and ferromagnetic particles of specified crystallite size and surface area and in which the mechanical loss tangent, tan delta, is within a specified range | Yasuyuki Yamada, Mikihiko Kato, Yasuhi Endo, Masaya Kojima | 1991-09-24 |
| 5045372 | Magnetic recording medium containing ferromagnetic metal powder and a specific fatty acid ester in a content dependent upon the specific surface area of the ferromagnetic metal powder | Yasushi Endo, Mikihiko Kato, Yasuyuki Yamada | 1991-09-03 |
| 5018257 | Magnetic sheet polishing device | Haruo Soeda, Masamichi Sato, Takashi Kubo | 1991-05-28 |
| 4984121 | Magnetic recording/reproduction apparatus having negative and positive pressure generating members for deforming a flexible magnetic disk | — | 1991-01-08 |
| 4976020 | Magnetic sheet polishing device | Haruo Soeda, Masamichi Sato, Takashi Kubo | 1990-12-11 |
| 4945436 | Double-sided recording method using slanted guide plates upstream and downstream of recording heads | — | 1990-07-31 |
| 4661871 | Regulating apparatus and method for use with rotary magnetic recording sheet permitting improved head contact | — | 1987-04-28 |
| 4646179 | Flexible magnetic disc, positioning apparatus and method permitting improved head contact | Akira Kasuga | 1987-02-24 |