Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8616187 | Waste heat recovering and cooling apparatus for engine | Yoshinobu Yamazaki, Suguru Matsumoto, Shinya Kurasawa | 2013-12-31 |
| 7539510 | Communication apparatus and portable telephone | Katsumi Okayama, Sakan Iwashita, Yoshiki Kanayama, Hiroki Ito | 2009-05-26 |
| 7034405 | Resin component for encapsulating semiconductor and semiconductor device using it | Katsumi Okayama, Kazumasa Igarashi | 2006-04-25 |
| 6932920 | Complex material, artificial light-emitting skin and artificial light-emitting body | Masayuki Suzuki, Naomi Nagasawa | 2005-08-23 |
| 6800804 | Epoxy resin composition used for encapsulating semiconductor and semiconductor device using the composition | Kazumasa Igarashi, Katsumi Okayama | 2004-10-05 |
| 6785519 | Portable telephone | Katsumi Okayama | 2004-08-31 |
| 6773800 | Electromagnetic wave absorbent and method for producing magnetic powder for the same | Akihisa Hosoe, Koji Nitta, Shinji Inazawa, Katsumi Okayama | 2004-08-10 |
| 6695985 | Electromagnetic wave suppressor sheet | Kazumasa Igarashi, Katsumi Okayama | 2004-02-24 |
| 6670546 | Radio wave absorber | Katsumi Okayama, Yoshihiro Kato, Satoshi Sugimoto, Koichiro Inomata | 2003-12-30 |
| 6503963 | Radiowave absorbent and manufacturing method thereof | Sakan Iwashita, Katsumi Okayama | 2003-01-07 |
| 6473024 | Electromagnetic wave absorber | Katsumi Okayama, Sakan Iwashita | 2002-10-29 |
| 6426457 | Apparatus and method for shielding electromagnetic wave | Sakan Iwashita | 2002-07-30 |
| 6279396 | Ultrasonic-wave distance measuring method and apparatus of separate transmission and reception type reflection system | Toshiyuki Imagawa, Tatsuo Hakuta | 2001-08-28 |
| 5282190 | Data storage disk drive with a piezoelectric member and a resilient member between a head and a disk | Tsunehiro Maruo | 1994-01-25 |
| 4760153 | Process for producing maleic anhydride | Youjirou Takahashi, Toshimasa Kushihara, Ikuo Kurimoto, Shigemi Osaka, Yoshiyuki Nakanishi | 1988-07-26 |