Inventor

Tetsuo Ito

Inventor

Hitachi, JP

Overview

60→

Patents

1976–2020

Patent span

Physics

Primary field (CPC G)

Patents· 60 as inventor

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

B65Hprimary

B65HHandling thin or filamentary material, e.g. sheets, webs, cables9%

G05BControl or regulating systems in general9%

G11BInformation storage based on relative movement between record carrier and transducer7%

H04NPictorial communication, e.g. television7%

H04BTransmission4%

H04LTransmission of digital information, e.g. telegraphic communication4%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%

B01DSeparation3%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

B29CShaping or joining of plastics3%

PatentTitleYear

10,865,065Image reading device2020 10,737,896Image reading apparatus2020 10,440,215Image reading apparatus2019 9,884,737'Sheet separating apparatus'2018 9,783,386'Sheet conveying apparatus'2017 9,738,480'Sheet conveying apparatus'2017 9,309,069'Sheet separating apparatus'2016 9,131,092'Image reading device'2015 8,860,958'Sheet conveyer devices, image reading apparatuses, and image forming apparatuses'2014 8,792,146'Image reading apparatus'2014 8,605,418'Two-axis hinge and mobile device'2013 8,587,840'Image reading apparatus'2013 8,576,549'Two-axis hinge and mobile device'2013 8,385,056'Two-axis hinge and mobile device'2013 8,125,079'Molded semiconductor device, apparatus for producing the same, and method for manufacturing the same'2012 7,775,812'Connection device to which electric device is connected and having dust-proof function'2010 7,482,701'Production equipment of resin molding semiconductor device, method of manufacturing resin molding semiconductor device, and resin molding semiconductor device'2009 7,241,717'Cathode catalyst for fuel cell'2007 6,875,050'Inside-door-function control unit'2005 6,530,141'Method of forming thin film magnetic recording head with narrow track width performing high density recording at high driving frequency'2003 6,496,451'Objective lens driving device and optical disc apparatus'2002 6,091,582'Thin film magnetic recording head with very narrow track width performing high density recording at high driving frequency'2000 5,777,896'Plant operating and monitoring apparatus'1998 5,748,495'Plant operating and monitoring apparatus'1998 5,701,394'Information processing apparatus having a neural network and an expert system'1997 5,581,242'Automatic alarm display processing system in plant'1996 5,407,880'Catalysts for adsorption of hydrocarbons'1995 5,292,696'Hydrocarbon adsorbing body'1994 5,287,264'Multicontroller apparatus, multicontroller system, nuclear reactor protection system, inverter control system and diagnostic device'1994 5,235,013'Process for producing oxygen-permeable polymer'1993 5,120,082'Mud guard with reinforcement film'1992 5,095,418'Multiplex control system'1992 4,989,129'Multiplex control system'1991 4,910,577'Lead frame'1990 4,879,087'Nuclear power plant'1989 4,872,948'Method and apparatus for controlling centrifugal thin film dryer'1989 4,811,328'Optical recording and reproducing device'1989 4,773,060'Optical information recording device'1988 4,742,575'Light signal transmission/reception system'1988 4,738,910'Method of applying a resist'1988 4,718,053'Optical information apparatus and method of recording and erasing information'1988 4,673,974'Image transmission system'1987 4,654,590'Method and apparatus for detecting the position of a movable object utilizing the magnetostrictive effect to generate ultrasonic waves'1987 4,651,172'Information recording medium'1987 4,644,346'Multiplex transmission system'1987 4,550,001'Process for producing shaped articles having improved surfaces'1985 4,542,479'Distributed control system'1985 4,520,483'Signal diagnostic method and apparatus for multiple transmission system'1985 4,494,954'Process for producing colored contact lens'1985 4,476,904'Device for measuring the length of a weft'1984 4,440,715'Method of controlling nuclear power plant'1984 4,432,048'Multiple digital controller system'1984 4,400,059'Liquid crystal display device'1983 4,348,110'Charging current integrating type photodetectors'1982 4,211,682'Dental hydraulic investment'1980 4,184,086'Semiconductor switch'1980 4,045,767'Method of ultrasonic data communication and apparatus for carrying out the method'1977 4,020,449'Signal transmitting and receiving device'1977 3,990,071'Data transmission system using frequency permutation codes'1976 3,971,287'Damper for string instrument'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2003Patents assigned to HITACHI LTD (31)· patent assignee history

1976–2015Patents assigned to ITO TETSUO (10)· patent assignee history

1976–1998Based in Hitachi, JP· patent location history

1980–1985Based in Machida, JP· patent location history

1983–2003Based in Mito, JP· patent location history

2002–2013Based in Yokohama, JP· patent location history

2013–2020Patents assigned to BROTHER IND LTD (11)· patent assignee history

2013Patents assigned to HAYASHI WAKATO (3)· patent assignee history

2013Patents assigned to IWAMA NORIYUKI (3)· patent assignee history

2013–2020Based in Nagoya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	31	1976–2003
BROTHER IND LTD	11	2013–2020
ITO TETSUOself	10	1976–2015
HAYASHI WAKATO	3	2013
IWAMA NORIYUKI	3	2013

Locations

Location	Patents	Span
Hitachi, JP	22	1976–1998
Nagoya, JP	9	2013–2020
Mito, JP	8	1983–2003
Yokohama, JP	4	2002–2013
Machida, JP	3	1980–1985