Inventor

Keiji Yoshida

Inventor

Chiba, JP

Overview

37→

Patents

1984–2015

Patent span

Chemistry

Primary field (CPC C)

Patents· 37 as inventor

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

G03Gprimary

G03GElectrography16%

C08LCompositions of macromolecular compounds10%

C08JWorking-up9%

Y10TTechnical subjects covered by former us classification9%

C09DCoating compositions, e.g. paints, varnishes or lacquers8%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%

B05DProcesses for applying fluent materials to surfaces, in general4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

B01FMixing, e.g. dissolving, emulsifying or dispersing3%

PatentTitleYear

8,999,485'Curable liquid silicone rubber composition for forming a sealing member and sealing member'2015 8,106,847'Communication circuit, communication apparatus, impedance matching circuit and impedance matching circuit designing method'2012 7,842,400'Surface-treated steel sheet and method for manufacturing the same'2010 7,498,897'Impedance matching circuit, and semiconductor element and radio communication device using the same'2009 7,452,195'Apparatus for preparation of aqueous emulsion from curable silicone composition and suspension of cured silicone particles'2008 7,202,301'Method for preparation of aqueous emulsion from curable silicone composition and suspension of cured silicone particles, and apparatus therefor'2007 6,617,048'Prepainted steel sheet and method for producing the same'2003 6,610,422'Coated steel sheet and method for manufacturing the same'2003 6,136,455'Coating composition for precoated steel sheet, precoated steel sheet, and process for preparing the same'2000 6,018,013'Coating composition and method for producing precoated steel sheets'2000 5,708,057'Silicone-modified water-based coating composition'1998 5,674,962'Toner resin'1997 5,409,989'Resin composition for toners'1995 5,359,178'Apparatus for detecting turn-on state of plural heat lamps of a thermal fixing unit of a copying machine'1994 5,342,722'Toner resin composition and process for preparing same'1994 5,244,577'Process for preparing osteogenesis promoting substance'1993 5,227,273'Binder for toner and process for producing the same'1993 5,204,413'Process fro producing resin for a toner'1993 5,176,960'High-strength silicone rubber particulate'1993 5,082,891'Curable resin composition containing dispersed particles of a cured silicone rubber'1992 5,071,918'Process for producing resin for a toner'1991 5,045,584'Polish containing silicone elastomer particles'1991 5,025,054'Polish containing a silicone rubber powder'1991 5,024,914'Resin for toner particle'1991 5,016,049'Document detecting device for an image forming apparatus'1991 5,009,978'Preparation process for toner polymer'1991 5,002,995'Acrylic rubber composition'1991 4,985,483'Fluororubber composition containing dispersed particles of cured silicone material'1991 4,980,167'Silicone cosmetic composition'1990 4,971,879'Polymer for toner, process for preparation thereof and toner composition'1990 4,958,189'Automatic exposure control system of image duplicating apparatus'1990 4,946,893'Method for preparing filled silicone rubber particles'1990 4,880,882'Curable resin composition containing a microparticulate silicone rubber'1989 4,780,260'Method for producing silicone rubber moldings having a hard exterior layer'1988 4,743,670'Method for producing silicone rubber powder'1988 4,711,569'Original illumination device with an automatic illumination control'1987 4,455,080'Copying apparatus equipped with control device'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1994Patents assigned to MINOLTA CAMERA KK (5)· patent assignee history

1984–1994Based in Toyokawa, JP· patent location history

1988–1991Patents assigned to TORAY SILICONE CO (7)· patent assignee history

1988–2015Based in Ichihara, JP· patent location history

1989–2008Based in Chiba, JP· patent location history

1990–1997Patents assigned to MITSUBISHI RAYON CO (9)· patent assignee history

1990–2008Patents assigned to DOW CORNING TORAY SILICONE (7)· patent assignee history

1990–1997Based in Nagoya, JP· patent location history

2000–2003Patents assigned to NIPPON KOKAN KK (4)· patent assignee history

2000–2010Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI RAYON CO	9	1990–1997
DOW CORNING TORAY SILICONE	7	1990–2008
TORAY SILICONE CO	7	1988–1991
MINOLTA CAMERA KK	5	1984–1994
NIPPON KOKAN KK	4	2000–2003

Locations

Location	Patents	Span
Chiba, JP	9	1989–2008
Nagoya, JP	9	1990–1997
Ichihara, JP	5	1988–2015
Tokyo, JP	3	2000–2010
Toyokawa, JP	3	1984–1994