Issued Patents 2004
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819240 | Anti-theft security sensor assembly | Masashi Iwasawa, Tsuyoshi Hatano | 2004-11-16 |
| 6816330 | Method for forming a magnetic pattern in a magnetic recording medium, magnetic recording medium magnetic recording device and photomask | Youji Arita | 2004-11-09 |
| 6783428 | Method for forming grooves on workpiece and for dressing a grindstone used in the groove formation | Akio Sakai, Takaji Iwasawa, Katsuyuki Yamamoto, Masami Tanaka | 2004-08-31 |
| 6781779 | Magnetic recording medium, its production method and magnetic recording apparatus | Yoji Arita | 2004-08-24 |
| 6744583 | Method for forming a magnetic pattern in a magnetic recording medium, a magnetic pattern forming device, a magnetic recording medium and a magnetic recording device | Yuzo Seo, Youji Arita | 2004-06-01 |
| 6731490 | Surge absorber and production method thereof | Takahiro Nakamoto, Masanobu Asami | 2004-05-04 |
| 6731446 | METHOD FOR FORMING A MAGNETIC PATTERN IN A MAGNETIC RECORDING MEDIUM, METHOD FOR PRODUCING A MAGNETIC RECORDING MEDIUM, MAGNETIC PATTERN FORMING DEVICE, MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING DEVICE | Youji Arita, Masahiro Kawashima, Takeshi Kuriwada, Yuzo Seo | 2004-05-04 |
| 6727624 | Embedded permanent magnet type induction motor which allows coil embedding work to be easily performed | Ikuro Morita, Hidetoshi Hayashi | 2004-04-27 |
| 6714131 | Anti-thief security sensor assembly using the opening of the projector cover for beam adjustment | Masashi Iwasawa, Tsuyoshi Hatano, Fumikatsu Sone | 2004-03-30 |
| 6696946 | Anti-thief security sensor assembly | Masashi Iwasawa | 2004-02-24 |
| 6683595 | Liquid crystal display apparatus and driving method | — | 2004-01-27 |