Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8684594 | Magnetically insensitive, highly hard and constant-modulus alloy, and its production method, as well as hair spring, mechanical driving apparatus and watch and clock | Koichiro Jujo, Osamu Takahashi, Jun Tsuneyoshi, Ryo Sugawara, Takeshi Takano | 2014-04-01 |
| 5849113 | Electrical resistant alloy having a high temperature coefficient of resistance | Katashi Masumoto, Naoji Nakamura | 1998-12-15 |
| 5725687 | Wear-resistant high permability alloy and method of manufacturing the same and magnetic recording and reproducing head | Katashi Masumoto | 1998-03-10 |
| 5547520 | Wear-resistant high permeability magnetic alloy and method of manufacturing the same | Katashi Masumoto | 1996-08-20 |
| 5496419 | Wear-resistant high permeability magnetic alloy and method of manufacturing the same | Katashi Masumoto | 1996-03-05 |
| 4834813 | Wear-resistant alloy of high permeability and methods of producing the same | Hakaru Masumoto | 1989-05-30 |
| 4830685 | Wear-resistant alloy of high permeability and method of producing the same | Hakaru Masumoto | 1989-05-16 |
| 4710243 | Wear-resistant alloy of high permeability and method of producing the same | Hakaru Masumoto | 1987-12-01 |
| 4572750 | Magnetic alloy for magnetic recording-reproducing head | Hakaru Masumoto | 1986-02-25 |
| 4440720 | Magnet alloy useful for a magnetic recording and reproducing head and a method of manufacturing thereof | Hakaru Masumoto | 1984-04-03 |