Inventor

Tadashi Ikeda

Inventor

Kanagawa, JP

Overview

1976–2014

Patent span

Physics

Primary field (CPC G)

Patents· 106 as inventor

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

G03Cprimary

G03CPhotosensitive materials for photographic purposes40%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%

G11CStatic stores8%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments6%

H01FMagnets6%

C07DHeterocyclic compounds4%

Y10TTechnical subjects covered by former us classification3%

F16HGearing2%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds1%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture1%

PatentTitleYear

8,920,107'Substrate support apparatus and vacuum processing apparatus'2014 8,635,927'Speed change device of a transmission'2014 8,201,469'Output shaft reduction-type dual clutch transmission'2012 7,238,467'Silver halide emulsion, method of preparing the same and silver halide photosensitive material using the same'2007 6,948,394'Transmission'2005 6,694,728'Exhaust gas dilution apparatus'2004 6,189,402'Gear transmission'2001 6,165,704'Silver halide photographic light-sensitive material'2000 6,120,983'Photothermographic material, novel 2,3-dihydrothiazole derivative, and photographic silver halide photosensitive material'2000 5,784,365'Time division multiplex communication control system'1998 5,667,958'Silver halide photographic material'1997 5,578,440'Silver halide photographic material'1996 5,571,662'Silver halide photographic material'1996 5,559,240'Silver halide photographic light-sensitive material'1996 5,538,843'Hydrazine compound and silver halide photographic material containing the same'1996 5,529,896'Silver halide photographic material'1996 5,527,914'Methine compounds'1996 5,489,505'Silver halide photographic material'1996 5,480,886'Silver halide photographic material'1996 5,462,851'Silver halide photographic material'1995 5,457,022'Silver halide photographic material'1995 5,443,949'Silver halide photographic material'1995 5,429,920'Silver halide emulsion'1995 5,397,693'Silver halide photographic light-sensitive material'1995 5,296,345'Silver halide photographic material'1994 5,296,343'Silver halide photographic emulsion and full color recording material containing the same'1994 5,290,675'Silver halide photographic material'1994 5,275,931'Silver halide photographic material'1994 5,260,183'Silver halide photographic material'1993 5,213,959'Silver halide photographic material'1993 5,183,733'Silver halide photographic materials'1993 5,175,080'Methine compound and silver halide photographic material containing the methine compound'1992 5,166,047'Methine compounds'1992 5,142,029'Silver halide photographic material containing a compound with variable development restraining ability'1992 5,047,978'Bloch line memory device'1991 5,032,500'Process for the preparation of silver halide photographic emulsion'1991 4,987,064'Silver halide photographic materials'1991 4,971,889'Silver halide photographic emulsions'1990 4,949,304'Bloch line memory device'1990 4,917,997'Silver halide photographic emulsion'1990 4,897,343'Silver halide photographic emulsion'1990 4,894,319'Color image-forming process for high silver chloride color photographic material having improved spectral sensitivity and silver removability'1990 4,884,236'Bloch line memory device'1989 4,845,671'Bloch line memory device'1989 4,837,140'Color image-forming high silver chloride color photographic material having improved spectral sensitivity and silver removability for use therewith'1989 4,822,726'Method for formation of color images and high silver chloride color photographic materials having improved spectral sensitivity and desilvering property for use therewith'1989 4,817,053'Apparatus for storing and retrieving information using an electron beam'1989 4,789,626'Method for processing silver halide color photographic materials containing sensitizing dyes and two-equivalent magenta polymer couplers'1988 4,783,398'Photographic silver halide emulsion containing tabular grains of high chloride content'1988 4,772,817'Cathode mounting a high-frequency piezoelectric chip'1988 4,769,783'Magnetic bubble memory device'1988 4,756,995'Direct reversal silver halide photographic light-sensitive material'1988 4,744,051'Magnetic bubble memory device'1988 4,740,453'Silver halide photosensitive material containing a compound capable of releasing a photographically useful group'1988 4,717,650'Silver halide photographic emulsion'1988 4,701,385'Ion-implanted magnetic bubble device and a method of manufacturing the same'1987 4,657,846'Silver halide photographic printing paper'1987 4,621,344'Magnetic bubble device'1986 4,609,621'Silver halide photographic light-sensitive material'1986 4,594,317'Silver halide photographic light-sensitive material'1986 4,592,991'Silver halide photographic printing paper'1986 4,584,668'Magnetic bubble memory device'1986 4,582,786'Silver halide photographic emulsion'1986 4,581,329'Silver halide photographic light-sensitive material'1986 4,574,115'Silver halide light-sensitive materials having a layer of grains having dye absorbed thereon'1986 4,559,617'Magnetic bubble memory device'1985 4,556,583'Method of fabricating magnetic bubble memory device'1985 4,556,582'Method of fabricating magnetic bubble memory device'1985 4,551,424'Silver halide photographic light-sensitive material'1985 4,528,645'Magnetic bubble memory device'1985 4,516,327'Touch signal probe'1985 4,494,216'Magnetic bubble memory device'1985 4,476,152'Method for production of magnetic bubble memory device'1984 4,460,412'Method of making magnetic bubble memory device by implanting hydrogen ions and annealing'1984 4,456,975'Magnetic bubble memory device with guardrail'1984 4,455,368'Silver halide photographic light-sensitive material containing a UV absorbing polymer latex'1984 4,443,534'Silver halide photographic elements containing polymers which filter UV light'1984 4,431,726'Silver halide photographic light-sensitive element containing a u.v. absorbing layer'1984 4,404,233'Ion implanting method'1983 4,362,813'Silver halide photographic emulsions'1982 4,338,372'Garnet film for magnetic bubble device'1982 4,337,063'Competitive immunoassay using spectral sensitizer label'1982 4,304,425'Tubular sealing device'1981 4,286,044'Silver halide photographic materials'1981 4,267,230'Film for a magnetic bubble domain device'1981 4,266,003'Silver halide photographic emulsions'1981 4,195,999'Silver halide photographic material containing ultraviolet light absorbing agent'1980 4,191,576'Light-sensitive silver halide photographic element containing UV absorber'1980 4,152,163'Silver halide photographic emulsion containing cyanine and hemicyanine sensitizing dyes'1979 4,147,553'Supersensitized photographic emulsion'1979 4,115,122'Internal latent image silver halide emulsion containing a heterocyclic quaternary salt having a propargyl or a butyryl containing substituent'1978 4,102,743'Process for the removal of sucrose from a sugar mixture'1978 4,072,567'Compound water-insoluble glucan and process for the production thereof'1978 4,067,738'Photographic light-sensitive element having a dyed layer'1978 4,046,572'Silver halide photographic light sensitive material'1977 4,040,841'Silver halide photographic emulsion'1977 4,028,112'Photographic sensitive materials having a dyed layer'1977 4,018,610'Supersensitized silver halide photographic emulsion'1977 4,010,037'Spectrally sensitized silver halide photographic emulsion'1977 3,988,155'Silver halide photographic emulsion'1976 3,986,878'Silver halide photographic emulsion'1976 3,985,563'Silver halide photographic emulsion'1976 3,976,492'Silver halide photographic emulsions'1976 3,966,477'Spectrally sensitized silver halide photographic emulsion'1976 3,951,666'Spectrally sensitized silver halide photographic emulsion'1976 3,933,510'Spectrally sensitized silver halide photographic emulsion'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2000Patents assigned to FUJI PHOTO FILM CO LTD (72)· patent assignee history

1976–2007Based in Minami-ashigara, JP· patent location history

1978–1998Based in Tokyo, JP· patent location history

1981–1991Patents assigned to HITACHI LTD (22)· patent assignee history

1981–1985Based in Kodaira, JP· patent location history

1982–2014Based in Kanagawa, JP· patent location history

1988–1991Based in Tsukui, JP· patent location history

2001–2014Patents assigned to ISUZU MOTORS LTD (4)· patent assignee history

2012–2014Patents assigned to IKEDA TADASHI (3)· patent assignee history

2012–2014Patents assigned to AKASHI KOUHEI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	72	1976–2000
HITACHI LTD	22	1981–1991
ISUZU MOTORS LTD	4	2001–2014
IKEDA TADASHIself	3	2012–2014
AKASHI KOUHEI	2	2012–2014

Locations

Location	Patents	Span
Kanagawa, JP	64	1982–2014
Minami-ashigara, JP	23	1976–2007
Kodaira, JP	10	1981–1985
Tokyo, JP	3	1978–1998
Tsukui, JP	3	1988–1991