MH

Masaaki Hirai

AC Arisawa Mfg. Co.: 6 patents #6 of 105Top 6%
Casio Computer Co.: 4 patents #615 of 1,970Top 35%
JA Jamco: 3 patents #20 of 91Top 25%
Sharp Kabushiki Kaisha: 2 patents #5,184 of 10,731Top 50%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
TE Toshiba Elevator: 1 patents #48 of 91Top 55%
NK Nihon Kohden: 1 patents #238 of 467Top 55%
TC Toho Tenax Co.: 1 patents #11 of 48Top 25%
Overall (All Time): #287,394 of 4,157,543Top 7%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
11865794 Prepreg and method for manufacturing molded prepreg article Akira Uchiyama, Hiroshi Tanaka 2024-01-09
11655126 Diagnostic system Tadashi Shudo, Motoki Yoshida, Yoshinobu Ishikawa 2023-05-23
8943860 Vibration control device for washing machine Akiyuki Yokoyama 2015-02-03
8789571 Prepreg manufacturing device Akihiko Machii, Kazunari Imai 2014-07-29
8383231 Sandwich panel Hiroshi Horigome, Hiroshi Tanaka 2013-02-26
8334042 Sandwich panel Hiroshi Horigome, Yasunobu Tanaka, Hiroshi Tanaka 2012-12-18
8161607 Method for opening fabric, fabric, and composite material Akihiko Machii 2012-04-24
8025954 Sandwich panel Hiroshi Horigome, Hiroshi Tanaka 2011-09-27
7420325 Display device 2008-09-02
6435709 Band and wrist device Tadao Hirano, Yuji Doi, Hajime Iguchi 2002-08-20
6382388 Passenger conveyer apparatus Yoshio Ogimura, Kazuhisa Hara, Takayuki Kikuchi 2002-05-07
6238083 Band and wrist device Tadao Hirano, Yuji Doi, Hajime Iguchi 2001-05-29
5820996 Electroluminescence device and method of manufacturing same Noriaki Nakamura 1998-10-13
5442602 Wristwatch case with shock absorbing members on the rear side thereof Mitsuo Matsunaga, Yoshiya Kato 1995-08-15
5411029 Biological signal measuring device 1995-05-02
5378862 Universal pivot switch with a hemispheric pivotal support member Hideo Tasaka 1995-01-03