MI

Masahiro Itoh

Ricoh Company: 33 patents #538 of 9,818Top 6%
Canon: 13 patents #5,080 of 19,416Top 30%
OC Oki Electric Industry Co.: 8 patents #196 of 2,807Top 7%
DE Denso: 8 patents #1,668 of 11,792Top 15%
Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
SO Sony: 5 patents #7,785 of 25,231Top 35%
Mitsubishi Electric: 5 patents #5,859 of 25,717Top 25%
Tdk: 5 patents #1,099 of 3,796Top 30%
Eastman Kodak: 4 patents #2,416 of 8,114Top 30%
SC Sumitomo Electric Printed Circuits: 3 patents #34 of 116Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
S( Sae Magnetics (H.K.): 1 patents #306 of 585Top 55%
NG Nihon Shinku Gijutsu: 1 patents #54 of 128Top 45%
TC Tokyo Gas Co.: 1 patents #144 of 412Top 35%
TC Toppan Printing Co.: 1 patents #691 of 1,467Top 50%
📍 Koka, JP: #1 of 142 inventorsTop 1%
Overall (All Time): #16,357 of 4,157,543Top 1%
94
Patents All Time

Issued Patents All Time

Showing 76–94 of 94 patents

Patent #TitleCo-InventorsDate
5270436 Polyester for electrophotography Shinji Kubo, Noriyuki Tajiri, Hitoshi Iwasaki, Masayuki Takyu, Hirokazu Ito 1993-12-14
5267007 Magnetic seal for preventing developer from leaking out of the longitudinal ends of a rotatable member Akira Watanabe, Yuji Sakemi 1993-11-30
5264049 Method of manufacturing a multi-layered wiring board Risaburo Yoshida, Akira Muraki, Yasuhiro Sakuma 1993-11-23
5258629 Light-emitting diode print head with staggered electrodes Masataka Itoh 1993-11-02
5243364 Light-emitting diode print head 1993-09-07
5240335 Braille printing apparatus Masayuki Kuwabara 1993-08-31
5220530 Semiconductor memory element and method of fabricating the same 1993-06-15
5216654 Synchronizing signal switching system for synchronizing external storage devices Toshifumi Hatagami 1993-06-01
5192705 Method for manufacturing semiconductor stacked CMOS devices 1993-03-09
5177536 Developing apparatus having a magnetic seal Akira Watanabe, Yuji Sakemi, Hiroshi Satomura 1993-01-05
5155054 Method of manufacturing a semiconductor MOSFET having a projection T-shaped semiconductor portion 1992-10-13
5136350 Semiconductor mosfet having a projecting T-shaped portion 1992-08-04
5115259 Electrophotographic image forming apparatus 1992-05-19
5113232 LED array chips with thermal conductor Masayuki Kuwabara 1992-05-12
5034341 Method of making a memory cell array structure 1991-07-23
4941003 Image forming apparatus Atsushi Takeda, Hiroaki Tsuchiya 1990-07-10
4920389 Memory call array structure and process for producing the same 1990-04-24
4874227 Large-sized liquid crystal display Hideki Matsukawa, Takeshi Masuyama, Minoru Hirota, Yasuo Wakahata, Shinji Harada 1989-10-17
4860048 Image forming apparatus Yoshihiro Murasawa, Atsushi Takeda, Hiroaki Tsuchiya, Kimio Nakahata 1989-08-22