HS

Hiroaki Sakai

SE Seiko Epson: 32 patents #449 of 7,774Top 6%
Canon: 31 patents #1,730 of 19,416Top 9%
NI Ngk Insulators: 16 patents #195 of 2,083Top 10%
HH Hitachi High-Technologies: 10 patents #266 of 1,917Top 15%
Mitsubishi Electric: 9 patents #3,275 of 25,717Top 15%
Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
KS Kyocera Document Solutions: 3 patents #862 of 1,545Top 60%
MC Mita Industrial Co.: 3 patents #398 of 891Top 45%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
OC Okuno Chemical Industries Co.: 1 patents #25 of 77Top 35%
NT Nagaoka University Of Technology: 1 patents #15 of 81Top 20%
KS Kobe Steel: 1 patents #857 of 2,031Top 45%
TC Threebond Co.: 1 patents #61 of 172Top 40%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
NC Nippon Air Brake Co.: 1 patents #53 of 107Top 50%
Overall (All Time): #10,108 of 4,157,543Top 1%
119
Patents All Time

Issued Patents All Time

Showing 101–119 of 119 patents

Patent #TitleCo-InventorsDate
5596586 Failure simulation method 1997-01-21
5521044 Electrophotosensitive material Nariaki Muto, Keisuke Sumida, Hiroaki Iwasaki, Tsuneo Oki, Eiichi Miyamoto +1 more 1996-05-28
5499486 Process for packing electrophotographic photoreceptor Keizo Kimoto, Yasuyuki Hanatani, Tsuneo Oki, Mamoru Uemura 1996-03-19
5492590 Method for peeling the interlayer of a two-sided adhesive tape 1996-02-20
5403412 Sticking apparatus and sticking method Masao Hidaka 1995-04-04
5294750 Ceramic packages and ceramic wiring board Shinsuke Yano, Takao Soma, Manabu Isomura 1994-03-15
D341823 Pen based computer 1993-11-30
5243820 Hydraulic circuit with compensator valve biased with highest pressure acting on actuators Ken-ichi Shimoura, Kensuke Ioku 1993-09-14
5238884 Silicon nitride bodies and a process for producing the same Manabu Isomura 1993-08-24
5159355 Ink jet apparatus with voltage control unit controlling a voltage source to apply AC preheating voltage and DC ink-boiling voltage Hideaki Horio, Masaharu Oyama, Mituhide Matuda 1992-10-27
5145620 Method of producing a silicon nitride sintered body Manabu Isomura 1992-09-08
5096859 Silicon nitride sintered body and method of producing the same Manabu Isomura 1992-03-17
D320194 Portable computer 1991-09-24
D311741 Portable computer 1990-10-30
D308051 Portable computer 1990-05-22
4923308 Process for determining the distribution of temperatures at surfaces of high temperature members Keiichiro Watanabe, Tadaaki Matsuhisa 1990-05-08
4788820 Hydraulic circuit for large crane Sachio Hidaka 1988-12-06
4673954 Multi-pen recording device 1987-06-16
4412823 Oral cavity cleaner Tadanori Okazaki 1983-11-01