Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11465855 | Powder/granular material spreader | Ryu Shinomiya, Masanori Yoshihara, Daisuke Hirajo, Satoshi Kato | 2022-10-11 |
| 6557793 | Toroidal core winding method and automatic winding apparatus | Takashi Kawamura, Masayasu Shimaru | 2003-05-06 |
| 4251746 | Direct-heated cathode structure | Takao Kawamura, Yukihiro Izumida, Hiroshi Fukushima, Takeo Takemoto, Tetsuo Kumazawa | 1981-02-17 |