Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703941 | Connection control method for personal communications | Akihisa Nakajima, Masami Yabusaki, Shoichi Hirata, Shiokazu Fujiwara, Yasuo Maruyama +2 more | 1997-12-30 |
| 5595948 | Magnesia-titania refractory and method for manufacturing the same | Etsuji Kimura, Fumihiko Ogino, Susumu Okabe | 1997-01-21 |