Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12394439 | Hard disk drive including annular spacer with inclined region on main surface | — | 2025-08-19 |
| 12145238 | Method for manufacturing substrate and method for manufacturing substrate for magnetic disk | — | 2024-11-19 |
| 12051442 | Hard disk drive spacer having chamfered surface and main surface with inclined region | — | 2024-07-30 |
| 11839950 | Spacer and laminate | — | 2023-12-12 |
| 11705158 | Method for manufacturing ring-shaped glass spacer | Shinji Eda | 2023-07-18 |
| 11471993 | Spacer, laminate of substrates, method for manufacturing substrate, and method for manufacturing substrate for magnetic disk | — | 2022-10-18 |
| 11244706 | Glass spacer and hard disk drive apparatus | Shinji Eda | 2022-02-08 |
| 11238895 | Spacer and hard disk drive apparatus | — | 2022-02-01 |
| 10872635 | Spacer and hard disk drive apparatus | — | 2020-12-22 |
| 10783921 | Glass spacer and hard disk drive apparatus | Shinji Eda | 2020-09-22 |
| 10446804 | Hermetically sealed battery and manufacturing method for hermetically sealed battery | Tomohiro Ono, Yuta Nemoto, Kazuyuki Kusama, Rika Shimazaki, Toshinori OKURA +3 more | 2019-10-15 |
| 7255943 | Glass substrate for a magnetic disk, magnetic disk, and methods of producing the glass substrate and the magnetic disk | Takemi Miyamoto | 2007-08-14 |
| 6877343 | Method of manufacturing a glass substrate and a magnetic recording medium | Tsuyoshi Watanabe, Koji Takahashi | 2005-04-12 |
| 6503600 | Magnetic recording medium using a glass substrate | Tsuyoshi Watanabe, Koji Takahashi | 2003-01-07 |
| 6277465 | Glass substrate for information recording medium | Tsuyoshi Watanabe, Koji Takahashi | 2001-08-21 |
| 6007957 | Magnetic toner, image forming method and process cartridge | Takakuni Kobori, Tsutomu Onuma, Nobuyuki Okubo, Masaichiro Katada | 1999-12-28 |
| 5912101 | Toner for forming an image, image forming method and heat-fixing method | Yuki Karaki, Hiroshi Yusa, Takashige Kasuya, Kazuo Maruyama | 1999-06-15 |
| 5840457 | Magnetic black toner and multi-color or full-color image forming method | Motoo Urawa, Keita Nozawa, Hiroshi Yusa, Takashige Kasuya, Yuki Karaki +1 more | 1998-11-24 |
| 5534377 | Nonmagnetic one-component developing method | Ryozo Okuno, Kimihiko Nakamura | 1996-07-09 |
| 4846057 | Screen printing machine with waste printing plate discharge means | Toshio Endo, Takashi Miyagi, Mitsuo Sato, Hironobu Takasawa, Hiroshi Kanno +2 more | 1989-07-11 |
| 4791866 | Speed control method for printing press and printing press practicing the method | Hiroshi Kanno, Toshio Endo, Keiichi Miyakawa | 1988-12-20 |
| 4687932 | Radiation image recording and read-out apparatus | Kaoru Tamura, Tsutomu Kimura | 1987-08-18 |
| 4603254 | Method of storing radiation image data | Hisatoyo Kato | 1986-07-29 |
| 4603260 | Composite material for storage of radiation image | — | 1986-07-29 |
| 4591922 | Radiation image reproducing apparatus | Eiichi Asai | 1986-05-27 |