Ryoichi Kobayashi

HI Hitachi: 30 patents #925 of 28,497Top 4%

HC Hitachi Car Engineering Co.: 13 patents #34 of 465Top 8%

HS Hitachi Automotive Systems: 8 patents #192 of 1,636Top 15%

Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%

UC Ulvac Coating: 7 patents #4 of 21Top 20%

IC Idemitsu Petrochemical Co.: 2 patents #182 of 578Top 35%

IC Idemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%

HC Hitachi, Ltd. And Hitachi Car Engineering, Co.: 1 patents #1 of 26Top 4%

Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%

ND Ntt Docomo: 1 patents #1,030 of 1,706Top 65%

Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%

📍 Hitachinaka, JP: #56 of 2,447 inventorsTop 3%

Overall (All Time): #50,976 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–52 of 52 patents

Patent #	Title	Co-Inventors	Date
4550612	Integrated pressure sensor	Kazuji Yamada, Shigeyuki Kobori, Satoshi Shimada, Ryosaku Kanzawa, Hideo Sato	1985-11-05
4404539	Semiconductor strain gauge	Kazuji Yamada, Motohisa Nishihara, Hideo Sato, Seiko Suzuki	1983-09-13