YK

Yuji Kumagai

Sharp Kabushiki Kaisha: 6 patents #2,623 of 10,731Top 25%
FC Fuji Electric Co.: 2 patents #952 of 2,643Top 40%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Bridgestone: 2 patents #1,066 of 2,860Top 40%
JA Japan Aerospace Exploration Agency: 1 patents #160 of 546Top 30%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #313,347 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
12092552 Hose remaining lifetime prediction method and hose remaining lifetime prediction system Taisuke KURODA 2024-09-17
10164058 Semiconductor device and method of manufacturing semiconductor device Shuhei Tatemichi, Shunji Takenoiri, Masanori Inoue, Satoshi Kuboyama, Eiichi Mizuta 2018-12-25
9842912 Semiconductor device and method of manufacturing semiconductor device Shuhei Tatemichi, Shunji Takenoiri, Masanori Inoue, Satoshi Kuboyama, Eiichi Mizuta 2017-12-12
9658588 Image forming apparatus, image adjustment method for the image forming apparatus, and adjustment pattern image Norio Tomita, Yoshikazu Harada, Masaki Amemiya 2017-05-23
9024989 Registration adjustment method for image forming apparatus and image forming apparatus Takenori Ohtoshi, Norio Tomita, Kiyoshi Sasoh 2015-05-05
8121530 Image forming method and image forming apparatus Toshiki Takiguchi, Hiroyuki Murai, Masato Kuze 2012-02-21
7957688 Image forming method and image forming apparatus Toshiki Takiguchi, Hiroyuki Murai, Masato Kuze 2011-06-07
7660547 Charging device Toshiki Takiguchi, Masato Kuze, Hirokazu Yamauchi, Hiroyuki Murai 2010-02-09
7526217 Image forming apparatus and waste toner warning method Toshiki Takiguchi, Kazuhiro Matsuyama, Hirokazu Yamauchi, Hiroyuki Murai 2009-04-28
7456533 Motor and electric apparatus equipped with a conductive pin for suppressing electrolytic corrosion Yasuo Nanbu, Yoshikazu Sengokudani 2008-11-25
7339329 Dimmable ballast for an electrodeless discharge lamp Shinji Makimura, Hiroshi Kido, Shingo Masumoto, Akira Nakajo 2008-03-04
5945785 Power source device with minimized variation in circuit efficiency due to variation in applied voltage to driving transformer Hiroshi Kido, Shinji Makimura 1999-08-31
5388928 Flexible membraneous weir 1995-02-14
4563606 Electric rotary machine with toroidal windings on an annular stator core Iko Fukasawa 1986-01-07
4217514 Stator structure for induction motor Yuzuru Simazaki, Ryota DOI, Ikou Fukazawa, Motoo Yamaguchi 1980-08-12