Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11005300 | Wireless power transfer system | Masakazu Ushijima, Hajime Yuasa | 2021-05-11 |
| 10547214 | Wireless power transfer system | Masakazu Ushijima, Hajime Yuasa | 2020-01-28 |
| 10243406 | Wireless power transfer system | Masakazu Ushijima, Hajime Yuasa | 2019-03-26 |
| 7082791 | Apparatus for fabricating soot preform for optical fiber | Dai Inoue, Tetsuya Otosaka, Tadakatsu Shimada, Hideo Hirasawa | 2006-08-01 |
| 6698240 | Apparatus for manufacturing glass base material and a method for manufacturing glass base material | Hiroshi Tsumura, Hiroyuki Koide, Yuuji Tobisaka, Kazuhisa Hatayama, Tadakatsu Shimada +1 more | 2004-03-02 |
| 5683486 | Method of forming a fiber preform to minimize shifts of the zero-dispersion wavelength | Hiroshi Oyamada, Hideo Hirasawa | 1997-11-04 |