Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12223071 | Protecting device and protecting method | Takeshi Nagayoshi, Kimihiro YAMAKOSHI | 2025-02-11 |
| 12073004 | Verification information generating system, verification information generating method, and verification information generating program | Tsuneko Kura, Seishi OUCHI, Takeshi Nakatsuru | 2024-08-27 |
| 11977472 | Application operation control device, application operation control method, and application operation control program | Takeshi Nakatsuru | 2024-05-07 |
| 11922233 | Information creation device, information creation method, and information creation program | Takeshi Nakatsuru | 2024-03-05 |
| 11809580 | Update device and update method | Kenichiro Muto, Takeshi Nakatsuru, Kimihiro YAMAKOSHI | 2023-11-07 |
| 5335271 | Ring trip detection circuit | Kenji Takato, Kiyoshi Kurosaki, Taichi Kosako, Kazuyuki Minohara | 1994-08-02 |
| 5113426 | Ground fault detector | Kenji Takato, Toshiro Tojo | 1992-05-12 |
| 4995111 | Ring trip circuit for subscriber telephone | Toshiro Tojo, Kenji Takato, Yuzo Yamamoto, Yozo Iketani, Shin Ito | 1991-02-19 |
| 4935960 | Battery feed circuit | Kenji Takato, Toshiro Tojo, Yuzo Yamamoto | 1990-06-19 |
| 4912429 | Operational amplifier | Kenji Takato, Toshiro Tojo, Yuzo Yamamoto | 1990-03-27 |
| 4862309 | Protection circuit for battery feed circuit | Toshiro Tojo, Kenji Takato, Yuzo Yamamoto | 1989-08-29 |
| 4827503 | Integrated ringing circuit and a ring trip circuit for the same | Kenji Takato, Toshiro Tojo, Yuzo Yamamoto | 1989-05-02 |