MD

Masayuki Doi

Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%
HI Hitachi: 6 patents #6,582 of 28,497Top 25%
GH Gree Holdings: 5 patents #61 of 205Top 30%
VP Vodafone Group Plc.: 4 patents #34 of 243Top 15%
BC Big Daishowa Seiki Co.: 2 patents #7 of 18Top 40%
Ricoh Company: 2 patents #5,693 of 9,818Top 60%
SO Softbank: 2 patents #26 of 194Top 15%
SS Sumitomo Wiring Systems: 2 patents #1,192 of 2,615Top 50%
HC Hitachi Cable: 1 patents #530 of 1,086Top 50%
BC Big Daishowa Co.: 1 patents #8 of 13Top 65%
DK Daishowa Seiki Kabushiki Kaisha: 1 patents #7 of 19Top 40%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
BC Big Alpha Co.: 1 patents #3 of 6Top 50%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
NK Nihon Musen Kabushiki Kaisha: 1 patents #7 of 25Top 30%
Overall (All Time): #111,802 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
5898739 QPSK demodulator for obtaining phase by arithmetic operation 1999-04-27
5898743 Digital radio communications receiver Takanori Shoji, Yasuyuki Nagashima 1999-04-27
5801589 Frequency synthesizer which suppresses a spurious Kenichi Tajima, Kenji Itoh, Shuji Nishimura, Akio Iida 1998-09-01
5715284 Digital radio communications receiver Takanori Shoji, Yasuyuki Nagashima 1998-02-03
5242264 Machine on ground provided with heat resistant wall used for isolating from environment and heat resistant wall used therefor Yoshitaka Kojima, Noriyuki Ohnaka, Shizuka Yamaguchi, Shoichi Nakashima, Sai Ogawa +1 more 1993-09-07
5218708 Videotext communication network with a receiving terminal that automatically preforms operations to network responsive to predetermined schedule Yoshiyuki Kanbayashi, Tadahiko Nakao, Yasuo Koiwai, Shigeyuki Shimauchi, Tetsuro Sato +5 more 1993-06-08
4873150 High water-resistant member, and valve gear using the same for use in internal combustion engine Naotatsu Asahi, Yoshitaka Kojima, Hisanobu Kanamaru, Susumu Aoyama 1989-10-10