Inventor

Seikichi Tanno

Inventor

Hitachi, JP

Overview

22→

Patents

1976–2013

Patent span

Physics

Primary field (CPC G)

Patents· 22 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps18%

G02BOptical elements, systems or apparatus12%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

G03CPhotosensitive materials for photographic purposes6%

H05KPrinted circuits6%

C08JWorking-up4%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%

G11BInformation storage based on relative movement between record carrier and transducer4%

H01BCables4%

PatentTitleYear

8,461,454'Aqueous absorptive polymer-containing resin composition-producing method, aqueous absorptive polymer-containing resin composition, and porous substance-producing method using same and porous substance, insulated electric cable-producing method, insulated electric cable and coaxial cable'2013 8,129,439'Aqueous absorptive polymer-containing resin composition-producing method, aqueous absorptive polymer-containing resin composition, and porous substance-producing method using same and porous substance, insulated electric cable-producing method, insulated electric cable and coaxial cable'2012 7,515,809'Heat-resisting plastic optical fiber and manufacturing method thereof'2009 6,416,931'Photosensitive element for preparing a phosphor pattern'2002 6,358,663'FLUORESCENT PATTERN, PROCESS FOR PREPARING THE SAME, ORGANIC ALKALI DEVELOPING SOLUTION FOR FORMING THE SAME, EMULSION DEVELOPING SOLUTION FOR FORMING THE SAME AND BACK PLATE FOR PLASMA DISPLAY USING THE SAME'2002 6,329,111'Phosphor pattern, processes for preparing the same and photosensitive element to be used for the same'2001 6,248,501'Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same'2001 6,232,024'Fluorescent pattern, process for preparing the same, organic alkali developing solution for forming the same, emulsion developing solution for forming the same and back plate for plasma display using the same'2001 6,194,826'Process for preparing phosphor pattern, phosphor pattern prepared the same and back plate for plasma display panel'2001 6,077,647'Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same, and phosphor subjected to surface treatment and process for preparing the same'2000 5,858,616'Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same, and phosphor subjected to surface treatment and process for preparing the same'1999 5,113,477'Plastic optical fibers from polymers derived from metallic salts of ethylenic carboxyl monomers'1992 5,084,355'Laminar structure comprising organic material and inorganic material'1992 4,946,242'Optical part including integral combination of optical fiber and light emitting or receiving element and method of manufacturing the same'1990 4,873,030'Method of molding a resinous optical transmitting element'1989 4,810,048'Mechanical part mounting chassis with integrated circuit'1989 4,523,668'Power controlling apparatus using friction material'1985 4,505,546'Liquid crystal display device'1985 4,490,496'Moistureproof insulating coating composition for packing circuit boards'1984 4,469,409'Homogeneous alignment layer for liquid crystal display device'1984 4,284,662'Method of manufacturing color picture tubes'1981 3,957,916'Process for preparing a thermoplastic resin with PVC dispersed therein'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1992Patents assigned to HITACHI LTD (11)· patent assignee history

1976–2013Based in Hitachi, JP· patent location history

1984–2002Patents assigned to HITACHI CHEMICAL CO LTD (9)· patent assignee history

1989–2013Patents assigned to HITACHI CABLE (5)· patent assignee history

2012–2013Patents assigned to KATO YOSHIHISA (2)· patent assignee history

2012–2013Patents assigned to TANNO SEIKICHI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	11	1976–1992
HITACHI CHEMICAL CO LTD	9	1984–2002
HITACHI CABLE	5	1989–2013
KATO YOSHIHISA	2	2012–2013
TANNO SEIKICHIself	2	2012–2013

Locations

Location	Patents	Span
Hitachi, JP	22	1976–2013