Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12247728 | Wireless power feeding system having battery mounted device engaged with power receiving device with light unit mounted device | Yoshinori Kuno, Kenji Tahara | 2025-03-11 |
| 12212152 | Wireless power feeding system, and power receiver having circular, spherical, or polyhedral shape | Kenji Tahara | 2025-01-28 |
| 12095281 | Wireless power feeding system having tuning adjustment circuit | Kenji Tahara | 2024-09-17 |
| 6239789 | Position detecting method and apparatus for detecting a plurality of position indicators | Yuji Katsurahira | 2001-05-29 |
| 6005555 | Position detecting apparatus and method for detecting position pointing device | Yuji Katsurahira | 1999-12-21 |
| 5977959 | Position pointing device | Yuji Katsurahira, Masayasu Yamamoto, Takenori Kaneda | 1999-11-02 |
| 5969296 | Position pointing mechanism and method for position detecting apparatus | Masayasu Yamamoto, Takenori Kaneda, Yuji Katsurahira | 1999-10-19 |
| 5748110 | Angular input information system relative to a tablet for determining an incline angle of a pointer or stylus | Takahiko Funahashi | 1998-05-05 |
| 5675130 | Position sensing method for use in coordinate input apparatus | — | 1997-10-07 |