Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12168450 | Safety support device | Masaki Maruyama, Junichi Sakamoto, Yuichiro Shimura | 2024-12-17 |
| 10978635 | Piezoelectric element, piezoelectric actuator and piezoelectric transformer | Kiyohito Shibata, Norifumi Iwaki, Toshikatsu Nomura | 2021-04-13 |
| 6951048 | Method for producing a stacked piezoelectric element | Yutaka Maruyama, Nobuyuki Kojima, Takahiro Yamakawa | 2005-10-04 |
| 6668437 | Method for producing a stacked piezoelectric element | Yutaka Maruyama, Nobuyuki Kojima, Takahiro Yamakawa | 2003-12-30 |
| 6646570 | Point retrieval output system by a telephone number, and a memory medium | Kunihiro Yamada | 2003-11-11 |
| 6291932 | Stacked piezoelectric element and producing method therefor | Yutaka Maruyama, Nobuyuki Kojima, Takahiro Yamakawa | 2001-09-18 |
| 6201544 | Location floor number display device in navigation apparatus | — | 2001-03-13 |
| 6172447 | Piezoelectric transformer device | Katsuyuki Ishikawa, Takeshi Fujimura, Masaaki Toyama, Masako Kataoka, Takahiro Yamakawa +1 more | 2001-01-09 |
| 6114798 | Stacked element and vibration drive device | Yutaka Maruyama, Nobuyuki Kojima, Takahiro Yamakawa | 2000-09-05 |
| 5770916 | Laminated piezoelectric element and vibration wave actuator | Takahiro Yamakawa, Yutaka Maruyama, Nobuyuki Kojima | 1998-06-23 |