Inventor
SHIBUYA TAKESHI
JP60 patents
⚠️ This page may combine multiple inventors who share the name “SHIBUYA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS6768558B1Jul 27, 2004
Printed matter including invisible information and printing system
HITACHI LTD64 citations96
US6737021B2May 18, 2004
Automatic analyzer
HITACHI LTD46 citations96
US5838465ANov 17, 1998
Color compensating method of color image and color image generating apparatus
HITACHI LTD104 citations96
US7842237B1Nov 30, 2010
Automatic analyzer and rack transfer device
HITACHI LTD52 citations93
US5636082AJun 3, 1997
Rotating disk storage device with cooling air flow control
HITACHI LTD18 citations93
US5517372AMay 14, 1996
Rotating disk storage device with cooling air flow control
HITACHI LTD30 citations93
US5031059AJul 9, 1991
Rotating disk storage device with cooling gas flow control
HITACHI LTD38 citations93
US6197255B1Mar 6, 2001
Chemical analyzing apparatus
HITACHI LTD49 citations92
US6191868B1Feb 20, 2001
Distributed PWM halftoning unit and printer
HITACHI LTD24 citations92
US6204933B1Mar 20, 2001
Information print system and image processing apparatus
HITACHI LTD30 citations91
US6031629AFeb 29, 2000
Picture quality stabilizer for a color laser printer
HITACHI LTD19 citations91
US5867607AFeb 2, 1999
Digital halftoning apparatus and method
HITACHI LTD23 citations91
US7771656B2Aug 10, 2010
Automatic analyzer
HITACHI LTD9 citations84
US6500388B1Dec 31, 2002
Automatically analyzing apparatus
HITACHI LTD19 citations84
US7955557B2Jun 7, 2011
Automatic analyzer
HITACHI LTD4 citations63
RICOH KK
8 patentsUS6579826B2Jun 17, 2003
Reversible thermosensitive recording medium and image forming and erasing method using the recording medium
RICOH KK122 citations98
US7333259B2Feb 19, 2008
Multicolor display element
RICOH KK20 citations92
US7679781B2Mar 16, 2010
Color image processing apparatus and color printer system
RICOH KK11 citations83
US7830584B2Nov 9, 2010
Organic-inorganic composite material and method for producing the same, and functional electrode and functional device
RICOH KK7 citations74
US7663797B2Feb 16, 2010
Multicolor display element
RICOH KK6 citations74
US7570412B2Aug 4, 2009
Reversible recording material and displaying element
RICOH KK3 citations63
US7525716B2Apr 28, 2009
Display device and display apparatus
RICOH KK4 citations63
US7489432B2Feb 10, 2009
Electrochromic display device and display apparatus
RICOH KK5 citations59
RICOH CO LTD
5 patentsUS7974544B2Jul 5, 2011
Electrophotography apparatus having edge detection of toner patch and exposure control
RICOH CO LTD21 citations93
US7894118B2Feb 22, 2011
Electrochromic compound, electrochromic composition and display device
RICOH CO LTD7 citations84
US7948659B2May 24, 2011
Halftoning device and halftoning method and laser printer including the same
RICOH CO LTD8 citations82
US10887490B2Jan 5, 2021
Image processing apparatus, image processing system, and computer program product
RICOH CO LTD0 citations62
US7864372B2Jan 4, 2011
Color conversion apparatus and color conversion method
RICOH CO LTD3 citations62
HITACHI HIGH TECH CORP
5 patentsUSD631976SFeb 1, 2011
Sampler unit for clinical analyzer
HITACHI HIGH TECH CORP21 citations92
US11391750B2Jul 19, 2022
Automatic analyzer and sample-processing system
HITACHI HIGH TECH CORP1 citations73
US10094846B2Oct 9, 2018
Automatic analyzer and sample-processing system
HITACHI HIGH TECH CORP4 citations73
USD637730SMay 10, 2011
ISE analytical unit for clinical analyzer
HITACHI HIGH TECH CORP4 citations63
USD631975SFeb 1, 2011
Sample buffer unit for clinical analyzer
HITACHI HIGH TECH CORP4 citations63
SHIBUYA TAKESHI
5 patentsUS10922591B2Feb 16, 2021
Image forming apparatus
SHIBUYA TAKESHI2 citations73
US9640140B2May 2, 2017
Color management system
SHIBUYA TAKESHI2 citations73
US8559078B2Oct 15, 2013
Colorimetric chart and color reproduction estimating device
SHIBUYA TAKESHI4 citations62
US8559058B2Oct 15, 2013
Image processing apparatus, image processing method, and computer program product
SHIBUYA TAKESHI3 citations62
US8319811B2Nov 27, 2012
Scanning line aligned image forming apparatus
SHIBUYA TAKESHI2 citations62
TOKIEDA HITOSHI
2 patents(unassigned)
1 patentHITACHI HIGH TECHNOLOGIES
1 patentRICOH PRINTING SYS LTD
1 patentAKUTSU MASANORI
1 patentKABATA TOSHIYUKI
1 patentKOYO CHICAGO RAWHIDE CO LTD
1 patentSUZUKI KOUICHI
1 patentMASUDA MINORU
1 patentUNIV ILLINOIS
1 patentTANAKA MOTOKI
1 patentShowing the top 50 of 60 patents by PatentIndex Score.