Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11005300 | Wireless power transfer system | Masakazu Ushijima, Go Ogino | 2021-05-11 |
| 10547214 | Wireless power transfer system | Masakazu Ushijima, Go Ogino | 2020-01-28 |
| 10243406 | Wireless power transfer system | Masakazu Ushijima, Go Ogino | 2019-03-26 |
| 7351341 | Descaling method and descaling apparatus | Kiyoshi Tsuboi, Tsuneo Sugawara | 2008-04-01 |
| 7099726 | Production planning system | Kiyohisa Kawase, Kazuhiko Maeda, Yoshio Kobayashi, Osamu Mishima, Takashi Honma +5 more | 2006-08-29 |
| 7039481 | Production planning system | Kiyohisa Kawase, Kazuhiko Maeda, Yoshio Kobayashi, Osamu Mishima, Takashi Honma +5 more | 2006-05-02 |
| 5495237 | Measuring tool for collecting down hole information and metering valve for producing mud-pulse used in the same | Kazuho Hosono, Hikaru Kamiirisa, Keijiro Yamamoto, Hideyuki Miyaji | 1996-02-27 |
| 5295548 | Bottom-hole information collecting equipment | Kazuho Hosono | 1994-03-22 |