Inventor

Yoshiaki Shimizu

Inventor

Matsumoto, JP

Overview

1977–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 102 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B41Jprimary

B41JTypewriters21%

Y10TTechnical subjects covered by former us classification9%

G11BInformation storage based on relative movement between record carrier and transducer8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms6%

C03BManufacture, shaping, or supplementary processes4%

G01NInvestigating or analysing materials by determining their chemical or physical properties3%

G11CStatic stores2%

H03MCoding2%

H05KPrinted circuits2%

PatentTitleYear

RE048556Ink jet recording apparatus2021 10,916,294Apparatuses and methods for concentrated arrangement of amplifiers2021 10,894,418Liquid supply unit2021 10,857,802Liquid container2020 10,752,008Liquid supply unit2020 10,543,692Liquid supply unit2020 10,500,866Liquid container2019 10,434,786Liquid supply unit2019 10,424,368Apparatuses and methods for concentrated arrangement of transistors of multiple amplifier circuits2019 10,399,344Liquid container2019 10,343,412Liquid container2019 10,254,560Lens barrel and optical apparatus2019 10,239,315Liquid ejecting apparatus2019 10,232,627Container, liquid ejecting apparatus, liquid container2019 RE047185Ink jet recording apparatus2019 9,983,381Lens barrel and optical instrument2018 9,878,551'Liquid container and liquid ejection system'2018 9,539,820'Tank unit and liquid ejecting system having tank unit'2017 9,505,223'Liquid container and liquid ejection system'2016 9,393,802'Liquid storage container and liquid consumption apparatus'2016 9,365,042'Liquid supply device and liquid jetting system'2016 9,358,795'Liquid container and liquid ejection system'2016 9,139,011'Tank unit and liquid ejecting system having tank unit'2015 9,114,621'Liquid container'2015 9,061,509'Liquid holding container'2015 8,950,852'Liquid storage container and liquid consumption apparatus'2015 8,926,073'Liquid container and liquid ejection system'2015 8,841,772'Semiconductor device and method of manufacturing the same'2014 8,807,717'Liquid supply device and liquid jetting system'2014 8,757,781'Tank unit and liquid ejecting system having tank unit'2014 8,736,541'Reducing scrolling effect for LCD lamps'2014 8,678,567'Liquid container and liquid ejection system'2014 8,669,605'Semiconductor device and arrangement method of compensation capacitor of semiconductor device'2014 8,661,857'Method of manufacturing optical fiber preform'2014 8,646,885'Ink jet recording apparatus'2014 8,567,255'Semiconductor pressure sensor having a recess with a larger area than a planar shape of a diaphragm'2013 8,491,109'Container unit and liquid ejection system'2013 8,454,139'Liquid accommodating container, tank unit, and liquid ejecting system'2013 8,390,117'Semiconductor device and method of manufacturing the same'2013 8,354,696'Semiconductor device and layout design apparatus of semiconductor device'2013 8,322,165'Apparatus for fabricating an optical fiber'2012 8,202,616'Dark color sheet-like body having light reflection properties in near-infrared region'2012 8,177,314'Printing apparatus and method of switching filled states'2012 D0656539'Combined container and ink tanks for a printer'2012 8,081,392'Zoom lens'2011 7,876,253'A/D conversion circuit for use with low-potential and high-potential power supplies'2011 7,842,611'Substrate and manufacturing method of the same'2010 7,760,125'A/D conversion circuit for use with low-potential and high-potential power supplies'2010 7,595,960'Thin film magnetic head having heating element'2009 7,589,578'Level shift circuit and semiconductor device'2009 7,543,909'Wiper device and liquid ejection apparatus'2009 7,504,735'Manufacturing method of resin-molding type semiconductor device, and wiring board therefor'2009 7,397,407'D/A conversion circuit and A/D conversion circuit'2008 7,318,638'Liquid ejecting apparatus'2008 6,973,409'Liquid container, method of manufacturing the same, and method and program of controlling liquid ejecting device'2005 6,848,276'Optical fiber manufacture method, preform manufacture method, and preform manufacture apparatus'2005 6,779,362'Method of making an optical fiber preform where a second elongation is based on a mark on a glass rod'2004 6,637,857'Ink jet recording apparatus and cleaning control method for wiping device in the apparatus'2003 6,568,788'Ink jet recording apparatus'2003 6,386,001'Optical fiber manufacture method including elongating a preform in a vertical direction and a horizontal direction'2002 6,330,205'Virtual channel synchronous dynamic random access memory'2001 6,178,778'Method of stretching an optical fiber preform with monitoring the diameter at two locations'2001 6,131,414'Method for making a preform for optical fibers by drawing a mother ingot'2000 6,088,253'Semiconductor memory device and method for forming same'2000 6,012,218'Process for producing thin film magnetic heads'2000 6,010,745'Method for manufacturing a combination read/write thin film magnetic head'2000 5,894,388'Combination read/write thin film magnetic head'1999 5,668,128'Aziridine derivatives, their production and use'1997 5,643,650'Magneto-optical recording medium'1997 5,605,582'Alloy sheet having high etching performance'1997 5,514,468'Magneto-optical recording medium'1996 5,368,408'Ball-and-socket joint'1994 5,308,723'Thin metallic sheet for shadow mask'1994 5,278,716'Magnetic head with suppressed generation of pseudogap'1994 5,246,836'Peroxidase catalyzed enzyme assay by sample PRG-treatment'1993 5,195,004'Method of manufacturing a magnetic core half'1993 5,155,645'Magnetic head with improved efficiency in both high and low frequency ranges'1992 5,118,573'Magneto-optical recording medium'1992 5,099,376'Magnetic head and method of manufacturing the same'1992 5,043,459'Saccharoascorbic acid derivatives and production thereof'1991 5,007,158'Method of manufacturing magnetic heads'1991 4,978,615'Method for the determination of the compound having mercapto group'1990 4,968,784'Phenylazophenylazonaphtholsulfonic acids substituted by a triaminotriazine radical'1990 4,953,049'Metal-in-gap head with heat resistant layers'1990 4,950,334'Gas carburizing method and apparatus'1990 4,916,058'Method and test composition for determination of hydrogen peroxide'1990 4,851,353'Method and test composition for determination of lipid peroxide'1989 4,824,779'Method for the determination of the reduced form of nicotinamide adenine dinucleotide'1989 4,818,492'Capacitive liquid level sensor for automatic chemical analyzer'1989 4,818,591'Thermal transfer recording medium'1989 4,791,951'Governor for hydraulically controlled automatic transmission'1988 4,772,967'Magnetic recording apparatus in a helical scan system'1988 4,755,432'Thermal transfer recording medium'1988 4,743,885'Cyclic type D/A converter having error detection and correction system'1988 4,722,894'Method for the determination of ceruloplasmin activity'1988 4,428,330'Piston for internal combustion engines'1984 4,416,982'Composition and method for decomposing hydrogen peroxide'1983 4,384,042'Method and test composition for determination of hydrogen peroxide'1983 4,266,023'Glycerol oxidase and process for the production thereof and method for the quantitative determination of glycerol by glycerol oxidase'1981 4,202,941'Glycerol oxidase and process for the production thereof and method for the quantitative determination of glycerol by glycerol oxidase'1980 4,097,428'Fortimicin C and process for production thereof'1978 4,048,015'Fortimicin C and process for production thereof'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1993Based in Shizuoka, JP· patent location history

1988–2000Patents assigned to SANYO ELECTRIC CO (8)· patent assignee history

1990–1994Based in Minoh, JP· patent location history

1992–2014Patents assigned to SHINETSU CHEMICAL CO (10)· patent assignee history

2000–2012Based in Annaka, JP· patent location history

2003–2021Patents assigned to SEIKO EPSON CORP (36)· patent assignee history

2003–2021Based in Nagano, JP· patent location history

2011–2014Patents assigned to SHIMIZU YOSHIAKI (17)· patent assignee history

2012–2014Patents assigned to ISHIZAWA TAKU (7)· patent assignee history

2012–2021Based in Matsumoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO EPSON CORP	36	2003–2021
SHIMIZU YOSHIAKIself	17	2011–2014
SHINETSU CHEMICAL CO	10	1992–2014
SANYO ELECTRIC CO	8	1988–2000
ISHIZAWA TAKU	7	2012–2014

Locations

Location	Patents	Span
Matsumoto, JP	27	2012–2021
Shizuoka, JP	11	1977–1993
Nagano, JP	9	2003–2021
Annaka, JP	5	2000–2012
Minoh, JP	5	1990–1994