YH

Yutaka Hasegawa

SO Sony: 56 patents #372 of 25,231Top 2%
Yamaha: 35 patents #25 of 2,001Top 2%
Ricoh Company: 20 patents #1,076 of 9,818Top 15%
HK Hamamatsu Photonics K.K.: 14 patents #140 of 1,436Top 10%
DE Denso: 4 patents #3,129 of 11,792Top 30%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
SA Sanden: 2 patents #221 of 631Top 40%
TK Toshiba Kikai: 2 patents #223 of 713Top 35%
TC Toshiba Machine Co.: 2 patents #34 of 186Top 20%
EX ExxonMobil: 1 patents #5,661 of 10,161Top 60%
TC Teika Pharmaceutical Co.: 1 patents #8 of 26Top 35%
TO Tonen: 1 patents #126 of 264Top 50%
KC Kimmon Manufacturing Co.: 1 patents #2 of 13Top 20%
AC Aichi Tokei Denki Co.: 1 patents #12 of 31Top 40%
NC Nippon Electric Co.: 1 patents #251 of 792Top 35%
OT On Semiconductoc Trading: 1 patents #23 of 91Top 30%
OP Osaka Prefecture University Public: 1 patents #50 of 165Top 35%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
Overall (All Time): #8,146 of 4,157,543Top 1%
132
Patents All Time

Issued Patents All Time

Showing 126–132 of 132 patents

Patent #TitleCo-InventorsDate
4572654 Image density control method for electrophotography Kazuo Murai 1986-02-25
4539279 Image density control method Kazuo Murai 1985-09-03
4519695 Image density control method for electrophotography Kazuo Murai 1985-05-28
4436414 Toner collection device Shin-ichi Kamiyama 1984-03-13
4306457 Liquid meter comprising a circuit for reducing a detection error resulting from a variable flow rate Jun Fukui, Takeshi Yano, Masaharu Sakanaka 1981-12-22
4222355 Exhaust gas recirculation apparatus for an internal combustion engine Tatsumi Yamasaki, Isamu Ota, Heisuke Yamamoto, Noriaki Kawai, Toshihito Abe 1980-09-16
4198816 Apparatus for preventing after-fire of an internal combustion engine Koichi Hirakata 1980-04-22