Inventor

Yasuhisa Ohtake

Inventor

Fukaya, JP

Overview

1984–2000

Patent span

Electricity

Primary field (CPC H)

Patents· 29 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps62%

C23FNon-mechanical removal of metallic material from surface9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

Y10TTechnical subjects covered by former us classification6%

B05CApparatus for applying fluent materials to surfaces, in general4%

C22CAlloys4%

C21DModifying the physical structure of ferrous metals2%

G03CPhotosensitive materials for photographic purposes2%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices2%

PatentTitleYear

6,117,774'Method for manufacturing shadow mask and etching-resistant layer-coating apparatus'2000 6,060,112'Color cathode ray tube and method of manufacturing the same'2000 5,841,223'Color cathode ray tube and method of manufacturing the same'1998 5,830,373'Color cathode ray tube and method of manufacturing shadow mask'1998 5,635,320'Color cathode ray tube and method manufacturing the same'1997 5,592,044'Color cathode ray tube and method of manufacturing shadow mask'1997 5,578,898'Shadow mask and cathode ray tube'1996 5,532,088'Shadow mask plate material and shadow mask'1996 5,411,822'Shadow mask for color cathode ray tube, shadow mask printing negative plate used for manufacture of the shadow mask, and method and manufacturing the negative plate'1995 5,280,215'Shadow mask for color cathode ray tube'1994 5,260,153'Aperture pattern printing plate'1993 5,134,015'Aperture pattern-printing plate for shadow mask and method for manufacturing the same'1992 5,128,224'Method of manufacturing an aperture pattern printing plate'1992 5,006,432'Method for manufacturing a shadow mask'1991 4,846,747'Shadow mask, and method of manufacturing the same'1989 4,827,178'Image display tube'1989 4,771,213'Shadow mask'1988 4,724,012'Material for in-tube components and method of manufacturing it'1988 4,708,680'Color picture tube and method for manufacturing the same'1987 4,698,545'Color picture tube having a shadow mask with a Cr enriched layer'1987 4,689,114'Method for manufacturing a shadow mask'1987 4,665,338'Front end elements for a color cathode ray tube'1987 4,662,984'Method of manufacturing shadow mask'1987 4,612,061'Method of manufacturing picture tube shadow mask'1986 4,585,518'Method of manufacturing shadow mask'1986 4,565,755'Method of manufacturing shadow mask'1986 4,536,226'Method of manufacturing a shadow mask for a color cathode ray tube'1985 4,528,246'Shadow mask'1985 4,482,334'Method for making CRT shadow masks'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1987Patents assigned to TOKYO SHIBAURA ELECTRIC CO (4)· patent assignee history

1984–2000Based in Fukaya, JP· patent location history

1985–2000Patents assigned to TOSHIBA KK (25)· patent assignee history

1985–1987Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOSHIBA KK	25	1985–2000
TOKYO SHIBAURA ELECTRIC CO	4	1984–1987

Locations

Location	Patents	Span
Fukaya, JP	27	1984–2000
Saitama, JP	2	1985–1987