Inventor

Hiroshi Kajiyama

Inventor

Tokyo, JP

Overview

47→

Patents

1986–2021

Patent span

Physics

Primary field (CPC G)

Patents· 47 as inventor

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

Y10Tprimary

Y10TTechnical subjects covered by former us classification11%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for7%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables7%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons6%

G03GElectrography6%

H01JElectric discharge tubes or discharge lamps6%

D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%

G09GArrangements or circuits for control of indicating devices using static means to present variable information5%

C23CCoating metallic material5%

A61FFilters implantable into blood vessels4%

PatentTitleYear

11,099,510Presser, fixing device, and image forming apparatus2021 10,854,185Laminate2020 10,558,154Image forming apparatus incorporating pressing device2020 9,279,202'Needle-punched nonwoven fabric'2016 RE045821'Zinc-based metal plated steel sheet'2015 8,944,708'Sheet conveying device, and image forming apparatus including same'2015 8,623,514'Zinc-based metal plated steel sheet'2014 8,532,557'Attachment assist device and image forming apparatus including same'2013 8,221,900'Zinc-based metal plated steel sheet'2012 8,016,283'Recording sheet feeder and image forming apparatus providing easy maintenance with simple structure'2011 7,992,858'Sheet conveying apparatus, image scanning apparatus, and image forming apparatus'2011 7,931,267'Sheet feed device with sheet tray guide unit'2011 7,922,167'Sheet conveying device, and image forming apparatus including same'2011 7,708,276'Sheet conveying path switching device used in image forming apparatus, and sheet conveying device'2010 7,621,519'Sheet conveying apparatus, image reading apparatus, and image forming apparatus'2009 7,450,090'Plasma display panel and imaging device using the same'2008 7,399,932'Seat load measuring apparatus'2008 7,223,449'Film deposition method'2007 7,133,218'Optical system'2006 7,115,863'Probe for scanning probe lithography and making method thereof'2006 7,071,901'Plasma display panel and imaging device using the same'2006 6,844,062'Spontaneously degradable fibers and goods made thereof'2005 6,844,063'Spontaneously degradable fibers and goods made thereof'2005 6,841,741'Seat weight measuring apparatus'2005 6,831,413'Plasma display panel'2004 6,822,627'Plasma display panel and imaging device using the same'2004 6,816,134'Plasma display panel'2004 6,755,571'Rotational and bearing structures and a seat-weight measuring apparatus'2004 6,714,176'Plasma display device and a method of driving the same'2004 6,690,342'Plasma display device'2004 6,650,063'Plasma display panel and image display device using the same'2003 6,633,268'AC-type plasma display apparatus'2003 6,579,617'Spontaneously degradable fibers and goods made thereof'2003 6,578,786'Seat belt retractor with load absorbing mechanism'2003 6,440,556'Spontaneously degradable fibers and goods made thereof'2002 6,435,441'Seat belt retractor'2002 6,416,008'Seat belt retractor'2002 6,366,340'Electron exposure apparatus'2002 6,322,887'Spontaneously degradable fibers and goods made thereof'2001 6,174,602'Spontaneously degradable fibers and goods made thereof'2001 5,593,778'Biodegradable copolyester, molded article produced therefrom and process for producing the molded article'1997 5,561,300'Atomic switching devices and logical circuits'1996 5,226,910'Surgical cutter'1993 5,093,669'Vehicle navigation apparatus'1992 5,090,012'Multiplex transmission system for use in a vehicle'1992 5,079,759'Multiplex transmission system for vehicles having a failure diagnosis function'1992 4,614,692'Fuel cell electrode, process for producing the same and fuel cell using the same'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2008Patents assigned to HITACHI LTD (14)· patent assignee history

1986–2006Based in Hitachi, JP· patent location history

1993–2021Based in Tokyo, JP· patent location history

1997–2005Patents assigned to KANEBO LTD (7)· patent assignee history

1997–2005Based in Hofu, JP· patent location history

2002–2008Patents assigned to TAKATA CORP (6)· patent assignee history

2004–2008Based in Fuchu, JP· patent location history

2009–2015Based in Kanagawa, JP· patent location history

2011–2021Patents assigned to RICOH CO LTD (8)· patent assignee history

2012–2021Patents assigned to KAJIYAMA HIROSHI (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	14	1986–2008
RICOH CO LTD	8	2011–2021
KANEBO LTD	7	1997–2005
KAJIYAMA HIROSHIself	6	2012–2021
TAKATA CORP	6	2002–2008

Locations

Location	Patents	Span
Tokyo, JP	8	1993–2021
Hofu, JP	7	1997–2005
Hitachi, JP	6	1986–2006
Kanagawa, JP	4	2009–2015
Fuchu, JP	3	2004–2008