Inventor

Tsutomu Arai

Inventor

Kanagawa, JP

Overview

28→

Patents

1987–2020

Patent span

Physics

Primary field (CPC G)

Patents· 28 as inventor

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

G03Cprimary

G03CPhotosensitive materials for photographic purposes20%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%

G02BOptical elements, systems or apparatus11%

H04NPictorial communication, e.g. television9%

H05BElectric heating7%

G11BInformation storage based on relative movement between record carrier and transducer5%

Y10TTechnical subjects covered by former us classification5%

A47JKitchen equipment4%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%

PatentTitleYear

10,859,846Optical unit with shake correction function2020 10,798,304Optical unit with shake correction function including center-of-gravity position adjusting member and method for fixing center-of-gravity position adjusting member2020 8,964,516'Optical disc device and optical disc determination method'2015 7,515,705'Folding type portable terminal'2009 6,869,672'Antiglare film, sheet polarizer, and image display device'2005 6,858,977'Cathode-ray tube and cathode-ray tube manufacturing method'2005 6,830,348'Antiglare and antireflection film, polarizer, and image display device'2004 6,773,122'Optical film containing anti-glare layer and image display apparatus using the same'2004 6,502,943'Antiglare and antireflection film, polarizer, and image display device'2003 6,303,280'Transparent magnetic recording medium'2001 6,258,519'Transparent magnetic recording medium'2001 6,245,499'Photothermographic material'2001 6,203,972'Photothermographic material'2001 6,188,584'Power supply circuit maintaining electrical isolation'2001 6,153,372'Photothermographic element'2000 6,090,538'Heat developable light-sensitive material'2000 6,027,872'Thermographic photographic element'2000 5,942,384'Silver halide photographic materials and method for processing the same'1999 5,876,907'Image formation method'1999 5,609,997'Silver halide photographic material and a processing method for that material'1997 5,229,262'Silver halide photographic material and method for processing the same'1993 5,183,656'Deodorant and product in which the deodorant is used'1993 5,166,485'Frypan for both microwave and flame cooking'1992 5,097,106'Frypan for both microwave and flame cooking'1992 5,083,205'Television receiver with memory recall of television broadcast channel and system'1992 5,057,660'Method of making microwave heating apparatus'1991 5,015,813'Power feeding port arrangement for a microwave heating apparatus'1991 4,634,304'Printer'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to MITSUBISHI ELECTRIC CORP (5)· patent assignee history

1991–1992Patents assigned to MITSUBISHI ELECTRIC HOME APPL (4)· patent assignee history

1991–1992Based in Hanazono, JP· patent location history

1992–2005Patents assigned to SONY CORP (3)· patent assignee history

1992–2005Based in Chiba, JP· patent location history

1993–2005Patents assigned to FUJI PHOTO FILM CO LTD (15)· patent assignee history

1993–2005Based in Kanagawa, JP· patent location history

2001Based in Minami-ashigara, JP· patent location history

2020Patents assigned to NIDEC SANKYO CORP (2)· patent assignee history

2020Based in Nagano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	15	1993–2005
MITSUBISHI ELECTRIC CORP	5	1991–1993
MITSUBISHI ELECTRIC HOME APPL	4	1991–1992
SONY CORP	3	1992–2005
NIDEC SANKYO CORP	2	2020

Locations

Location	Patents	Span
Kanagawa, JP	13	1993–2005
Hanazono, JP	4	1991–1992
Nagano, JP	2	2020
Chiba, JP	2	1992–2005
Minami-ashigara, JP	2	2001