Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8253643 | Chip antenna and its production method, and antenna apparatus and communications apparatus comprising such chip antenna | Tomotsugu Kato, Hiroyuki Aoyama, Hideto Mikami | 2012-08-28 |
| 8154464 | Magnetic material antenna and ferrite sintered body | Shigeo Fujii, Hiroyuki Aoyama | 2012-04-10 |
| 7821468 | Chip antenna, an antenna device, and a communication equipment | Hiroyuki Aoyama, Sigeo Fujii, Shuuichi Takano | 2010-10-26 |
| 7651626 | Hexagonal ferrite, antenna using the same and communication apparatus | Hiroyuki Aoyama | 2010-01-26 |
| 6333103 | Aluminum oxide-coated article | Toshio Ishii, Hiroshi Ueda, Shirou Okayama, Nobuhiko Shima | 2001-12-25 |
| 6156383 | Alumina coated tool and production method thereof | Toshio Ishii, Hiroshi Ueda, Tsunehiro Kawata | 2000-12-05 |
| 5972495 | Alumina coated tool and production method thereof | Toshio Ishii, Hiroshi Ueda, Tsunehiro Kawata | 1999-10-26 |
| 5348806 | Cermet alloy and process for its production | Katsuhiko Kojo, Akibumi Negishi | 1994-09-20 |