Inventor

Koichi Maeda

Inventor

Tokyo, JP

Overview

51→

Patents

1979–2019

Patent span

Physics

Primary field (CPC G)

Patents· 51 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus11%

Y10TTechnical subjects covered by former us classification8%

C03CChemical composition of glasses, glazes or vitreous enamels7%

C23CCoating metallic material7%

F16FSprings7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

B23FMaking gears or toothed racks4%

B60GVehicle suspension arrangements4%

LOC154%

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

PatentTitleYear

10,409,746Memory access control device and control method of memory access2019 D0800802'Refrigerating machine'2017 D0800186'Refrigerating machine'2017 D0798345'Rack for refrigerating machine'2017 9,722,388'Multi-core optical amplifying fiber device and multi-core optical fiber amplifier'2017 9,692,201'Optical-fiber-bundle structure, rare-earth-doped multi-core fiber, connection structure therefor, method for exciting rare-earth-doped multi-core fibers, and multi-core-optical-fiber amplifier'2017 D0788189'Refrigerating machine'2017 9,225,141'Multi-core amplification optical fiber and multi-core optical fiber amplifier'2015 RE045719'Surface-coated cutting tool'2015 8,725,954'Information processing apparatus and memory control apparatus'2014 8,354,177'Surface-coated cutting tool'2013 7,510,761'Cutting tool made of surface-coated cemented carbide with hard coating layer exhibiting excellent wear resistance in high speed cutting operation of high hardness steel'2009 7,168,692'Fluid filled vibration damping device whose flexible layer having thick walled portion'2007 7,140,602'Fluid filled vibration damping device'2006 7,074,285'Manufacturing method for high-speed tool steel gear cutting tool'2006 6,978,876'Step for escalator'2005 6,863,269'Fluid filled vibration damping device'2005 6,854,721'Vibration-damping device'2005 6,811,581'High-speed tool steel gear cutting tool and manufacturing method therefor'2004 6,722,481'Vibration-damping device'2004 6,618,515'Connector with a connection detection function, optical fiber cable with a connection detection function, and equipment control mechanism for an optical equipment'2003 6,598,718'Vibration damping device having a flock coating'2003 6,524,771'Optical recording film and process for production thereof'2003 6,479,193'Optical recording film and process for production thereof'2002 6,311,124'Device, method and system for selecting emergency vehicles'2001 6,296,928'Hard coating coated member having excellent wear resistance'2001 6,153,127'Optical thin film, forming composition thereof, and ultraviolet ray absorbing and thermic ray reflecting glass using the same'2000 6,120,850'Colored film forming composition and method of manufacturing colored film coated glass product'2000 5,976,678'Colored film-covered glass articles'1999 5,942,331'Colored film-coated glass article'1999 5,876,854'UV absorbing, colored film-covered glass articles'1999 5,730,953'Tris(substituted phenyl) bismuth derivatives'1998 5,632,358'Elevator roller guide'1997 5,391,854'Method of spot welding aluminum alloys'1995 5,171,806'Optical material and composition for optical material'1992 5,164,223'Process for producing light control plate'1992 5,162,556'Organic gold compounds and method of preparing the same'1992 5,137,801'Process for producing light control plate having light-scattering pervious region'1992 5,112,722'Method of producing light control plate which induces scattering of light at different angles'1992 5,108,857'Light control sheets'1992 5,100,702'Thin platinum film-forming composition'1992 4,944,584'Plastic multifocal point spherical lens'1990 4,929,523'Light control sheets'1990 4,699,412'Lifting apparatus'1987 4,596,320'Hydraulic damper'1986 4,544,879'Stimulus/measuring unit for DC characteristics measuring'1985 4,467,275'DC characteristics measuring system'1984 4,390,187'Vehicle leveling system'1983 4,354,693'Vehicle height adjusting device'1982 4,349,735'Vehicle height detecting device'1982 4,134,755'Method for removing zinc type metals and compounds in dust recovery process in iron manufacture'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1986Patents assigned to TOKICO LTD (4)· patent assignee history

1982–2019Based in Kawasaki, JP· patent location history

1984–2017Based in Tokyo, JP· patent location history

1990–2003Patents assigned to NIPPON SHEET GLASS CO LTD (14)· patent assignee history

1990–1992Patents assigned to SUMITOMO CHEMICAL CO (5)· patent assignee history

1990–1992Based in Nishinomiya, JP· patent location history

1992–2003Based in Osaka, JP· patent location history

2001–2015Based in Akashi, JP· patent location history

2003–2007Patents assigned to TOKAI RUBBER IND LTD (6)· patent assignee history

2017Patents assigned to MITSUBISHI ELECTRIC CORP (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON SHEET GLASS CO LTD	14	1990–2003
TOKAI RUBBER IND LTD	6	2003–2007
SUMITOMO CHEMICAL CO	5	1990–1992
MITSUBISHI ELECTRIC CORP	4	2017
TOKICO LTD	4	1982–1986

Locations

Location	Patents	Span
Tokyo, JP	11	1984–2017
Osaka, JP	9	1992–2003
Kawasaki, JP	6	1982–2019
Akashi, JP	6	2001–2015
Nishinomiya, JP	4	1990–1992