Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7955673 | PVD cylindrical target | Takahiro Okazaki, Hirofumi Fujii | 2011-06-07 |
| 7502596 | Mobile communication systems | Narumi Umeda, Lan Chen | 2009-03-10 |
| 7254132 | Mobile communication system, mobile communication method, wireless base station, mobile station, and program | Kobaruto Shimada, Narumi Umeda, Hijin Sato | 2007-08-07 |
| 7254409 | Multicast service providing system, multicast service providing method, information distributor, radio terminal, and radio base station | Hijin Sato, Kobaruto Shimada, Narumi Umeda | 2007-08-07 |
| 7136662 | Wireless base station, method of selecting wireless base station, method of multicasting, and wireless terminal | Hijin Sato, Narumi Umeda, Kobaruto Shimada | 2006-11-14 |
| 6871071 | Handover control method and system | Hijin Sato, Narumi Umeda | 2005-03-22 |
| 5920220 | Clock timing recovery methods and circuits | Yoshifumi Suzuki, Tadashi Shirato | 1999-07-06 |