Hiromi Takahashi

OC Oki Electric Industry Co.: 5 patents #405 of 2,807Top 15%

SC Shionogi & Co.: 3 patents #298 of 1,054Top 30%

TC Tomy Kogyo Co.: 3 patents #37 of 149Top 25%

NE Nec: 2 patents #5,510 of 14,502Top 40%

YE Yokogawa Electric: 2 patents #398 of 1,441Top 30%

IC International Superconductivity Technology Center: 2 patents #60 of 245Top 25%

Kubota: 2 patents #849 of 2,059Top 45%

NO Nok: 2 patents #242 of 725Top 35%

CC Chugoku Electric Power Co.: 2 patents #24 of 143Top 20%

HC Hokkaido Electric Power Co.: 2 patents #9 of 84Top 15%

MM Mitsubishi Metal: 1 patents #45 of 150Top 30%

OC Oki Electronic Industries Co.: 1 patents #1 of 29Top 4%

OL Olympus: 1 patents #2,078 of 3,097Top 70%

SI Sankyo Oilless Industry: 1 patents #4 of 16Top 25%

MM Mitsubishi Materials: 1 patents #812 of 1,543Top 55%

SC System Instruments Co. : 1 patents #8 of 20Top 40%

KC Koki Holdings Co.: 1 patents #124 of 215Top 60%

TT The University Of Tokyo: 1 patents #1,000 of 2,633Top 40%

NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%

TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%

OD Oki Data: 1 patents #442 of 635Top 70%

📍 Ibaraki, JP: #207 of 6,779 inventorsTop 4%

Overall (All Time): #127,111 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #	Title	Co-Inventors	Date
4539148	Production of 1-oxacephams and intermediates	Sadao Yamamoto, Hikaru Itani, Teruji Tsuji, Wataru Nagata	1985-09-03
D267183	Manipulative water game housing	Akio Tsuyuki	1982-12-07
D265747	Vertical pinball-type game housing	—	1982-08-10
D263606	Game housing	—	1982-03-30