Inventor

Yoshio Yamaguchi

Inventor

Kawasaki, JP

Overview

43→

Patents

1985–2021

Patent span

Physics

Primary field (CPC G)

Patents· 43 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein12%

G03GElectrography12%

Y10TTechnical subjects covered by former us classification8%

C03CChemical composition of glasses, glazes or vitreous enamels6%

F16GBelts, cables, or ropes, predominantly used for driving purposes5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%

C23CCoating metallic material3%

C08LCompositions of macromolecular compounds2%

C25DProcesses for the electrolytic or electrophoretic production of coatings2%

PatentTitleYear

11,035,021High-strength steel sheet and high-strength galvanized steel sheet2021 10,056,211Heat-reactive switch2018 7,839,471'Transflective liquid crystal device having a wire serpentinely bypassing a light-shielding layer in an interpixel region'2010 7,382,386'Image forming apparatus'2008 6,946,679'Liquid crystal display device, manufacturing method therefor, and electronic apparatus'2005 6,919,948'Liquid crystal panel, manufacturing method therefor, and electronic equipment'2005 6,888,605'Electro-optical device and electronic apparatus'2005 6,704,075'Color filter substrate, method of fabricating color filter substrate, liquid crystal device, method of fabricating liquid crystal device, and electronic apparatus'2004 6,618,100'Liquid crystal device, liquid crystal device manufacturing method and electronic apparatus'2003 6,614,498'Liquid-crystal display device and electronic equipment'2003 6,573,960'Liquid crystal device having opening in reflection film outside pixel area for evaluating color filter and light shield, its method, and apparatus'2003 6,301,450'Electrophotography apparatus'2001 6,174,213'Fluorescent lamp and method of manufacturing same'2001 6,171,710'Surface treating agent for plating and base material with the plating adhered thereto'2001 6,128,463'Image forming device'2000 6,119,553'Rotation transmitting device'2000 5,976,628'Copper conductor paste and production method of copper conductor film'1999 5,852,757'Electrophotographic image forming apparatus having a device for recovering residual toner'1998 5,848,343'Electrophotographic image-forming apparatus with uniform toner usage control'1998 5,845,184'Developing unit having improved toner density control'1998 5,807,508'Copper conductor paste and production method of copper conductor film'1998 5,778,285'Image forming apparatus for collecting residual toner from a drum using an AC voltage'1998 5,731,075'Colorant for a transparent substrate and method of making the colorant'1998 5,679,466'Ultrafine particle dispersed glassy material and method'1997 5,678,143'Image forming apparatus for collecting residual toner from a drum using an AC voltage'1997 5,597,614'Ultrafine particle dispersed glassy material and method'1997 5,528,344'Image forming device'1996 5,512,980'Method of and apparatus for detecting toner empty'1996 5,418,056'Polymer composite with dispersed fine grains and a method for manufacturing the same'1995 5,371,122'Polymer composite, method and polymer composition'1994 5,045,138'Method of forming power transmission belt tensile cord'1991 4,941,961'Flexible elastomer electrode'1990 4,833,305'Thermally self-regulating elastomeric composition and heating element utilizing such composition'1989 4,765,930'Pressure-responsive variable electrical resistive rubber material'1988 4,730,932'Transmissivity inspection apparatus'1988 4,715,176'Power transmission tensile cord and belt manufacture'1987 4,648,341'Computerized sewing machine'1987 4,627,755'Platen of a printer'1986 4,604,081'Toothed belt'1986 4,538,535'Sewing machine with upper thread dyeing mechanism'1985 4,518,375'Toothed belt'1985 4,501,588'Instant thread dyeing method for sewing machine'1985 4,501,590'Instant thread dyeing method for sewing machines'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2001Patents assigned to MITSUBOSHI BELTING LTD (15)· patent assignee history

1985–1987Patents assigned to JANOME SEWING MACHINE CO LTD (5)· patent assignee history

1985–2001Based in Kobe, JP· patent location history

1985–2021Based in Tokyo, JP· patent location history

1989–1999Based in Hyogo, JP· patent location history

1996–2001Patents assigned to FUJITSU LTD (9)· patent assignee history

1996–2001Based in Kawasaki, JP· patent location history

1998–1999Patents assigned to OKUNO CHEM IND CO (2)· patent assignee history

2003–2005Patents assigned to SEIKO EPSON CORP (7)· patent assignee history

2003–2005Based in Matsumoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBOSHI BELTING LTD	15	1985–2001
FUJITSU LTD	9	1996–2001
SEIKO EPSON CORP	7	2003–2005
JANOME SEWING MACHINE CO LTD	5	1985–1987
OKUNO CHEM IND CO	2	1998–1999

Locations

Location	Patents	Span
Kawasaki, JP	9	1996–2001
Hyogo, JP	8	1989–1999
Kobe, JP	7	1985–2001
Matsumoto, JP	6	2003–2005
Tokyo, JP	5	1985–2021