Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11277684 | Diffuser | Norimasa Kitagawa, Mitsuhiko Tokuda, Ryuta Shigematsu, Koichi Sadaie, Yoshitada TAKESHIMA | 2022-03-15 |
| 10773280 | Ultrasonic treatment apparatus | Hisamitsu Yamamoto, Masayuki Utsumi, Yoshikazu Saijo, Tomoji Okuda, Yutaka NISHINAKA | 2020-09-15 |
| 10149053 | Signal processing device, signal processing method, and speaker device | Hiroki KUROSAKI, Tsuyoshi Kawaguchi, Hiroyuki Asahara, Norimasa Kitagawa | 2018-12-04 |
| 9787319 | Signal modulation circuit | Tsuyoshi Kawaguchi, Mamoru Sekiya | 2017-10-10 |
| 9762197 | Music reproducing device with active control ground mode | Kei Asao, Tsuyoshi Kawaguchi, Makoto Yoshida, Takanori Shiozaki, Hiroyuki Asahara +1 more | 2017-09-12 |
| 9712919 | Music reproducing device with first and second D/A converters for converting audio signals prior to inversion | Kei Asao, Tsuyoshi Kawaguchi, Makoto Yoshida, Takanori Shiozaki, Hiroyuki Asahara +1 more | 2017-07-18 |
| 9590654 | Signal modulation circuit | Tsuyoshi Kawaguchi, Mamoru Sekiya | 2017-03-07 |
| 9444488 | Signal modulation circuit | Tsuyoshi Kawaguchi | 2016-09-13 |
| 9350378 | Signal modulation circuit | Tsuyoshi Kawaguchi, Mamoru Sekiya | 2016-05-24 |
| 9287867 | Pulse synthesizing circuit | Tsuyoshi Kawaguchi, Mamoru Sekiya | 2016-03-15 |
| 8970269 | Pulse width modulator and switching amplifier | Mamoru Sekiya | 2015-03-03 |
| 8570083 | Pulse width modulation circuit and switching amplifier using the same | Mamoru Sekiya | 2013-10-29 |
| 8570102 | Switching amplifier | Kei Asao | 2013-10-29 |
| 8403731 | Inclination angle adjusting device and workpiece attaching device | Haruyuki HIRAYAMA, Hirohisa Yamada, Tomohiro Okamoto | 2013-03-26 |
| 8403732 | Inclination angle adjusting device and workpiece attaching device | Haruyuki HIRAYAMA, Hirohisa Yamada, Tomohiro Okamoto | 2013-03-26 |
| 8289076 | Amplifying circuit | Kei Asao | 2012-10-16 |
| 7710175 | Pulse width modulation circuit and switching amplifier using the same | Mamoru Sekiya | 2010-05-04 |
| 7456668 | Pulse width modulation circuit and switching amplifier using the same | Mamoru Sekiya | 2008-11-25 |
| 6060611 | Epoxy resin composition | Yoshinori Hara, Hiroko Inagaki, Mareki Miura, Yoshinobu Ohnuma | 2000-05-09 |
| 5910548 | Process for producing modified epoxy resin, modified epoxy resin produced, and epoxy resin composition thereof | Yasuyuki Murata, Norio Tohriiwa | 1999-06-08 |
| 5872196 | Liquid epoxy resin composition | Yasuyki Murata, Norio Tohriiwa | 1999-02-16 |
| 5756564 | Epoxy resin composition for encapsulation of semiconductors | Yasuyuki Murata, Norio Tohriiwa | 1998-05-26 |
| 5750631 | Halogenated epoxy resin, production of said resin, flame retardant, and flame-retarded epoxy resin composition | Yasuyuki Murata | 1998-05-12 |
| 5739186 | Epoxy resin composition for semiconductor encapsulation | Atsuhito Hayakawa, Yasuyuki Murata, Norio Tohriiwa | 1998-04-14 |
| 5623031 | Modified liquid epoxy resin composition | Tetsuro Imura, Yasuyuki Murata | 1997-04-22 |