Inventor

Kiyoshi Matsumoto

Inventor

Tokyo, JP

Overview

61→

Patents

1976–2020

Patent span

Physics

Primary field (CPC G)

Patents· 61 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer16%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure6%

G01NInvestigating or analysing materials by determining their chemical or physical properties5%

H04NPictorial communication, e.g. television5%

Y02TClimate change mitigation technologies related to transportation5%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%

C03CChemical composition of glasses, glazes or vitreous enamels3%

C23CCoating metallic material3%

G02BOptical elements, systems or apparatus3%

F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers2%

PatentTitleYear

10,731,564Transition structure2020 10,290,823Photodetector2019 10,234,429Sensor2019 10,137,042Travelling apparatus2018 10,094,724Pressure sensor2018 10,012,557Pressure sensor2018 9,995,642Cantilever pressure sensor with division portions for dividing lever resistance and having piezoresistor element2018 9,645,032'Pressure-sensitive sensor'2017 9,551,621'Pressure sensor having cantilever and displacement measurement unit'2017 9,546,948'Gas sensor'2017 9,504,417'Oral cavity sensor'2016 9,310,265'Tactile sensor and multi-axial tactile sensor'2016 9,250,210'Gas sensor'2016 9,188,497'Differential pressure sensor'2015 9,005,796'Power storage unit having reinforcing members in a direction crossing the transverse direction'2015 8,656,721'Gas turbine combustor including separate fuel injectors for plural zones'2014 8,504,248'Vehicle and its control method'2013 8,482,086'Three-dimensional structure and its manufacturing method'2013 8,440,089'Three-dimensional structure and its manufacturing method'2013 8,424,111'Near-field optical microscope, near-field optical probe, and sample observation method'2013 8,172,568'Combustor'2012 7,995,082'Three-dimensional recording and reproducing apparatus'2011 7,869,717'Optical communication light source unit and wavelength monitoring control method'2011 7,825,567'Three-dimensional structure and its manufacturing method'2010 7,580,082'Digital broadcasting receiver'2009 7,286,153'Three-dimensional recording and reproducing apparatus'2007 7,248,908'Method for measuring the concentration of a substance in a living body and device for measuring the same concentration'2007 7,221,456'Surface plasmon resonance sensor'2007 7,218,401'Surface plasmon sensor, surface plasmon resonance measurement device, and detection chip'2007 6,639,318'Integrated circuit device and its manufacturing method'2003 6,590,608'Method and apparatus for managing a plurality of images by classifying them into groups'2003 6,317,162'Digital television receiver including non-volatile memory'2001 6,311,523'Process for forming a glass sheet'2001 6,229,566'Electronic photography system'2001 6,130,797'Magnetic recorder and magnetooptical recorder'2000 6,101,845'Process for forming a glass sheet'2000 5,982,911'Braille recognition system'1999 5,828,636'Optical disk apparatus having optimized focus shift mechanism control'1998 5,796,428'Electronic photography system'1998 5,772,862'Film comprising silicon dioxide as the main component and method for its productiion'1998 5,737,301'Laser control for setting average recording power of \"1\" equal to average recording power of \"0\"'1998 5,710,985'Wireless portable telephone having antenna retraction detection means'1998 5,648,949'Method and apparatus for information reproduction at variable reference level'1997 5,614,938'Three-dimensional recording and reproducing apparatus'1997 5,605,609'Method for forming low refractive index film comprising silicon dioxide'1997 5,511,050'Focus error detecting method and optical head using the same'1996 5,464,674'Magnetic recording medium and method for its production'1995 5,448,544'Data recording/playback apparatus and signal processing method'1995 5,414,451'Three-dimensional recording and reproducing apparatus'1995 5,396,477'Light spot positioning method and optical disc memory apparatus employing the same'1995 5,390,599'On-line sheeter of printing system and method of changing length of cut'1995 5,377,178'Data recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronization'1994 5,339,319'Rotary type storage apparatus and control method thereof'1994 5,235,591'Stack type optical disc apparatus, sealed and separate type optical head therefor and optical disc medium'1993 5,209,835'Method for producing a specified zirconium-silicon amorphous oxide film composition by sputtering'1993 5,034,941'Optical disk apparatus having auto-focusing servo systems for multiple light spots and method of starting the auto-focusing servo systems'1991 4,982,279'Television receiver having a memorandum function'1991 4,774,552'Apparatus for and method of positioning and holding photosensitive material'1988 4,625,860'Tubular belt conveyor'1986 4,002,244'Buffer, particularly suitable for use in railway vehicles'1977 3,937,385'Method of manufacturing compound billets for hydrostatic extrusion'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2003Based in Yokohama, JP· patent location history

1991–2011Patents assigned to HITACHI LTD (18)· patent assignee history

1991–2009Patents assigned to SANYO ELECTRIC CO (4)· patent assignee history

1991–2011Based in Kokubunji, JP· patent location history

1993–2003Patents assigned to ASAHI GLASS CO LTD (7)· patent assignee history

1993–2019Based in Tokyo, JP· patent location history

1997–2011Based in Chiba, JP· patent location history

2007–2019Patents assigned to UNIV TOKYO (17)· patent assignee history

2012–2015Patents assigned to MATSUMOTO KIYOSHI (8)· patent assignee history

2012–2020Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	18	1991–2011
UNIV TOKYO	17	2007–2019
MATSUMOTO KIYOSHIself	8	2012–2015
ASAHI GLASS CO LTD	7	1993–2003
SANYO ELECTRIC CO	4	1991–2009

Locations

Location	Patents	Span
Tokyo, JP	22	1993–2019
Kokubunji, JP	14	1991–2011
Chiba, JP	6	1997–2011
Yokohama, JP	4	1977–2003
Kobe, JP	3	2012–2020