Inventor

Takashi Nagashima

Inventor

Osaka, JP

Overview

54→

Patents

1977–2017

Patent span

Physics

Primary field (CPC G)

Patents· 54 as inventor

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

G03Gprimary

G03GElectrography21%

B60TVehicle brake control systems or parts thereof20%

H04NPictorial communication, e.g. television6%

Y10TTechnical subjects covered by former us classification5%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables4%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%

G06FElectric digital data processing4%

B44FSpecial designs or pictures2%

G06TImage data processing or generation, in general2%

G09GArrangements or circuits for control of indicating devices using static means to present variable information2%

PatentTitleYear

9,721,555'Vibration damping material'2017 8,415,001'Decorative member'2013 8,227,070'Decorative member'2012 8,031,479'Power converter apparatus'2011 7,980,708'Document presentation device including a movable part'2011 7,838,791'Metal coating removing apparatus and metal coating removing method'2010 7,176,881'Presentation system, material presenting device, and photographing device for presentation'2007 7,027,041'Presentation system'2006 6,879,794'Image forming apparatus'2005 6,761,456'Laser presentation system using a laser pointer'2004 6,508,951'Low P type coolant composition'2003 6,105,611'Reservoir tank'2000 5,995,799'Image forming machine toner replenishing device capable of agitating the toner to avoid toner stagnation'1999 5,957,545'Fluid holding vehicle reservoir for preventing leakage of fluid'1999 5,893,010'Toner density controlling method and apparatus'1999 5,634,174'Developer apparatus having toner concentration control'1997 5,607,207'Hydraulic braking pressure control apparatus for automotive vehicle'1997 5,577,032'Broadcast service system'1996 D0366278'Toner cartridge'1996 5,460,350'Electromagnetic valve device'1995 5,418,603'Image forming apparatus capable of evaluating image forming performance'1995 5,408,282'Projection system for projection TV set'1995 5,374,873'Gyrotron apparatus having vibration absorbing means'1994 5,339,137'Image forming apparatus'1994 5,319,419'Scanning system driving device'1994 5,266,868'Gyrotron including quasi-optical mode converter'1993 5,145,160'Sheet sending apparatus'1992 5,146,342'Rear projection television set with lenticular sheet and fresnel lens'1992 5,144,366'Cooling system for use in an image forming machine'1992 5,141,297'Anti-lock brake circuit with a piezo hydraulic pump and changeover valve'1992 5,064,252'Brake fluid pressure controller'1991 4,939,047'Molded saddle for storage battery plates, storage battery container, and storage battery'1990 4,933,716'Film carrier'1990 4,907,171'Image size converter'1990 4,896,923'Dual hydraulic brake system'1990 4,879,578'Paper feeding device and a paper guiding device in a copying apparatus'1989 4,793,923'Gradient density filter medium'1988 4,761,041'Fluid pressure control valve for vehicle braking system'1988 4,750,786'Brake pressure control system of vehicle load responsive type'1988 4,602,864'Cleaning device in electrostatic copying apparatus'1986 4,561,699'Brake pressure control device for vehicle braking systems'1985 4,544,210'Hydraulic brake inertia-controlled proportioning valve'1985 4,533,233'Electrostatic copying apparatus'1985 4,530,588'Mount for a rotating drum and a developer within an electrostatic copying apparatus'1985 4,523,754'Paper guiding device in a copying apparatus'1985 4,515,464'Copying apparatus having a copy sheet sorter'1985 4,487,497'Optical device in variable magnification electrostatic copying apparatus'1984 4,456,673'Transfer-type electrostatic copying method'1984 4,413,861'Fluid pressure control valve unit of the inertia-controlled type'1983 4,236,228'Memory device for processing picture images data'1980 4,222,613'Pressure control valve assembly for brake systems'1980 4,141,596'Hydraulic brake control assembly responsive to vehicular deceleration'1979 4,036,534'Anti-skid control apparatus with booster device and pressure reducing device'1977 4,022,514'Anti-skid brake control system'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2000Patents assigned to AISIN SEIKI (16)· patent assignee history

1977–1983Based in Toyota, JP· patent location history

1984–1999Patents assigned to MITA INDUSTRIAL CO LTD (17)· patent assignee history

1985–2005Based in Osaka, JP· patent location history

1985–2011Based in Aichi, JP· patent location history

1990–1994Patents assigned to TOSHIBA KK (3)· patent assignee history

1990–2011Based in Saitama, JP· patent location history

2006–2011Patents assigned to FUJINON CORP (3)· patent assignee history

2010–2017Patents assigned to PANASONIC CORP (4)· patent assignee history

2010–2017Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITA INDUSTRIAL CO LTD	17	1984–1999
AISIN SEIKI	16	1977–2000
PANASONIC CORP	4	2010–2017
FUJINON CORP	3	2006–2011
TOSHIBA KK	3	1990–1994

Locations

Location	Patents	Span
Osaka, JP	9	1985–2005
Aichi, JP	7	1985–2011
Saitama, JP	6	1990–2011
Toyota, JP	5	1977–1983
Kyoto, JP	4	2010–2017