Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7983947 | Method and apparatus for assisting positional information service | Masahiro Kaiwa, Kenichi Shima, Hiroyuki Yamamoto, Mioko Chikamori, Seigo Teramachi +1 more | 2011-07-19 |
| 7558584 | Location reporting method and related mobile communication terminal | Hiroyuki Yamamoto, Masaaki Maeda, Koichi Takahara, Masahiro Kaiwa, Kaoru Nakajima +3 more | 2009-07-07 |
| 7430422 | Position information notifying method and device | Junko Nagatsuma, Hiroyuki Yamamoto, Kazunori Kosuge, Katsutoshi Murata | 2008-09-30 |