Issued Patents All Time
Showing 51–75 of 94 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440324 | Method for manufacturing piezoelectric ceramic composition, piezoelectric resonator, piezoelectric transformer and piezoelectric actuator, and piezoelectric laminated sintered body | Koichi Hayashi, Toshikatsu Hisaki, Yuji Yoshikawa, Masanori Kimura | 2002-08-27 |
| 6423244 | Piezoelectric ceramic composition and piezoelectric ceramic device using the same | Takuya Sawada, Masahiko Kimura, Koichi Hayashi | 2002-07-23 |
| 6424080 | Piezoelectric element and method of producing the same | Koichi Hayashi, Masahiko Kimura | 2002-07-23 |
| 6391223 | Piezoelectric ceramic composition and piezoelectric ceramic element using the same | Takuya Sawada, Masahiko Kimura, Koichi Hayashi | 2002-05-21 |
| 6383411 | Piezoelectric ceramic composition and piezoelectric ceramic device using the same | Takuya Sawada, Masahiko Kimura, Koichi Hayashi | 2002-05-07 |
| 6379580 | Piezoelectric ceramic material and monolithic piezoelectric transducer employing the ceramic material | Koichi Hayashi, Akihiro Nakamichi | 2002-04-30 |
| 6372152 | Piezoelectric ceramic composition and ceramic piezoelectric device employing the composition | Takuya Sawada, Masahiko Kimura, Koichi Hayashi | 2002-04-16 |
| 6369488 | Piezoelectric device | Masahiko Kimura, Takuya Sawada | 2002-04-09 |
| 6299815 | Process for producing piezoelectric ceramics | Masahiko Kimura | 2001-10-09 |
| 6258291 | Piezoelectric ceramic composition and piezoelectric ceramic device using the same | Masahiko Kimura, Takuya Sawada, Koichi Hayashi | 2001-07-10 |
| 6248254 | Piezoelectric ceramic composition and piezoelectric ceramic device using the same | Masahiko Kimura, Takuya Sawada, Koichi Hayashi | 2001-06-19 |
| 6218770 | Piezoelectric element | Koichi Hayashi | 2001-04-17 |
| 6208063 | Surface acoustic wave device having polycrystalline piezoelectric ceramic layers | Katsuhiro Horikawa | 2001-03-27 |
| 6117354 | Piezoelectric ceramic composition | Masahiko Kimura, Tadahiro Minamikawa | 2000-09-12 |
| 6117355 | Piezoelectric ceramic composition and piezoelectric element using the piezoelectric ceramic composition | Isamu Yoshizawa, Katsuhiro Horikawa, Koichi Hayashi | 2000-09-12 |
| 6093339 | Piezoelectric ceramic composition | Masahiko Kimura, Tomoyuki Ogawa | 2000-07-25 |
| 6083415 | Piezoelectric ceramic composition | Masahiko Kimura | 2000-07-04 |
| 6012207 | Method of manufacturing a piezoelectric transformer | Koji Ogiso | 2000-01-11 |
| 5993683 | Piezoelectric ceramic | Kohichi Hayashi, Akira Nagai, Hiroshi Takagi, Kiyoshi Hase | 1999-11-30 |
| 5965057 | Piezoelectric ceramic and manufacturing method thereof | Kiyoshi Hase, Hiroshi Takagi, Akira Nagai, Yu Tokuda, Koichi Hayashi | 1999-10-12 |
| 5959391 | Piezoelectric transformer | Koji Ogiso | 1999-09-28 |
| 5954993 | Piezoelectric ceramic composition and method for producing piezoelectric ceramics | Katsuhiro Horikawa | 1999-09-21 |
| 5954994 | Piezoelectric ceramic composition | Masahiko Kimura, Tadahiro Minamikawa | 1999-09-21 |
| 5945030 | Piezoelectric ceramic composition | Masahiko Kimura | 1999-08-31 |
| 5903086 | Piezoelectric Transformer | Koji Ogiso | 1999-05-11 |