Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703941 | Connection control method for personal communications | Akihisa Nakajima, Masami Yabusaki, Shoichi Hirata, Kenichi Yamaguchi, Shiokazu Fujiwara +2 more | 1997-12-30 |
| 5677954 | Cryptical control method for personal communication | Shoichi Hirata, Hiroshi Tsukahara, Masami Yabusaki | 1997-10-14 |
| 5649301 | Mobile communication method for controlling origination or termination of a call in a desired network | Masami Yabusaki, Yasuo Maruyama, Shoichi Hirata, Hiroshi Nakamura, Hiroshi Tsukahara +1 more | 1997-07-15 |