HI

Hirofumi Ishida

EL Electroplating Engineers Of Japan Limited: 5 patents #4 of 29Top 15%
KM Konica Minolta: 5 patents #737 of 2,718Top 30%
IN Intel: 2 patents #13,213 of 30,777Top 45%
TK Tanaka Kikinzoku Kogyo K.K.: 2 patents #140 of 436Top 35%
Mazda Motor: 1 patents #2,563 of 4,755Top 55%
NE Nec: 1 patents #7,889 of 14,502Top 55%
KM Konica Minolta: 1 patents #986 of 1,361Top 75%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
MC Matsumoto Yushi-Seiyaku Co.: 1 patents #49 of 113Top 45%
📍 Tsukuba, JP: #177 of 2,818 inventorsTop 7%
Overall (All Time): #254,801 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
10732556 Image forming apparatus and management method for image forming apparatus 2020-08-04
10394157 Image forming apparatus 2019-08-27
10054869 Image forming apparatus for detecting crack generated in charging member, method for controlling the image forming apparatus, and control program used in the image forming apparatus 2018-08-21
9841708 Image forming apparatus having power supply that applies reverse-bias voltage to transfer member 2017-12-12
9783429 Method for purifying dodecacarbonyl triruthenium Hirofumi Nakagawa, Tasuku ISHIZAKA, Akiko Kumakura 2017-10-10
9499411 Device for producing and method for producing dodecacarbonyl triruthenium Hirofumi Nakagawa, Tasuku ISHIZAKA, Ken Hagiwara, Akiko Kumakura 2016-11-22
9081360 Image formation apparatus 2015-07-14
8620191 Developing device and image formation apparatus Futoshi Okazaki 2013-12-31
7665565 Support structure for control pedal of vehicle Masayuki Tokumo, Tetsuo Hiura 2010-02-23
7179359 Cup-shaped plating apparatus 2007-02-20
6736945 Wafer plating apparatus Yoshiyuki Harima 2004-05-18
6456283 Method and system for generating image in computer graphics 2002-09-24
6224670 Cup-type plating method and cleaning apparatus used therefor 2001-05-01
5871626 Flexible continuous cathode contact circuit for electrolytic plating of C4, TAB microbumps, and ultra large scale interconnects Douglas E. Crafts, Steven M. Swain, Kenji Takahashi 1999-02-16
5853636 Fiber treatment composition Takeshi Munekiyo, Tamotsu Matsunaga 1998-12-29
5807469 Flexible continuous cathode contact circuit for electrolytic plating of C4, tab microbumps, and ultra large scale interconnects Douglas E. Crafts, Steven M. Swain, Kenji Takahashi 1998-09-15
5447615 Plating device for wafer 1995-09-05
5429733 Plating device for wafer 1995-07-04