Inventor

Hiroshi Nishizawa

Inventor

Kitaibaraki, JP

Overview

1977–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 81 as inventor

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

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%

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

H01BCables6%

C08LCompositions of macromolecular compounds5%

H05KPrinted circuits4%

F16CShafts4%

G01TMeasurement of nuclear or x-radiation4%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%

H04NPictorial communication, e.g. television4%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

10,851,433Manufacturing method of mechanical component using martensitic stainless steel, rotating device, rolling bearing and rolling bearing unit2020 10,661,101Dose distribution calculation device, particle beam therapy system, and dose distribution calculation method2020 10,494,692Manufacturing method of mechanical component using martensitic stainless steel, rotating device, rolling bearing and rolling bearing unit2019 10,399,817Elevator car position detection device2019 9,588,236'Radioactivity analyzing apparatus'2017 D0778991'Bearing for a yo-yo'2017 9,335,380'Device for detecting insulation degradation'2016 D0748740'Bearing for yo-yo'2016 9,234,738'Rotation-angle detection device'2016 9,222,993'Magnetic substance detection device'2015 9,030,210'Insulation deterioration diagnosis apparatus'2015 8,827,560'Slide device'2014 8,824,105'Pivot bearing and magnetic recording apparatus using the same'2014 8,134,359'Magnetic rotational-angle detector'2012 8,013,410'Imaging device, method for manufacturing the imaging device and cellular phone'2011 7,929,229'Piezoelectric actuator device, image pickup unit and mobile terminal apparatus'2011 7,830,610'Lens, lens unit, and imaging device using the same'2010 7,746,569'Imaging device'2010 7,633,287'Current sensor'2009 7,560,307'Resin composition, heat-resistant resin paste and semiconductor device using these and method of preparing the same'2009 7,534,059'Imaging apparatus and method for manufacturing the same'2009 7,349,626'Imaging apparatus'2008 7,122,787'Imaging apparatus with three dimensional circuit board'2006 7,061,081'Resin composition, heat-resistant resin paste and semiconductor device using them and method for manufacture thereof'2006 7,034,540'Voltage detection circuit for storage devices'2006 6,998,604'Apparatus for measuring absorption dose distribution'2006 6,754,058'Current breaker circuit for storage devices, and abnormality detection circuit'2004 6,670,789'Voltage equalizing apparatus for battery devices'2003 6,642,693'Voltage equalizing apparatus for battery devices'2003 6,631,051'Magnetic head including a slider with a hole, a magnetic head core having a magnetic gap, and a winding wound around the magnetic head core'2003 6,594,336'Absorption dose measuring apparatus for intensity modulated radio therapy'2003 6,586,910'Voltage equalizer apparatus and method thereof'2003 6,510,028'Magnetic head moving motor and magnetic recording apparatus'2003 6,498,705'Electrical connection arrangement for a magnetic head of a floppy disk drive'2002 6,473,267'Floppy disk drive unit with mounting plate between carriage and lower magnetic head'2002 6,373,223'Voltage equalizing apparatus and voltage equalizing method for battery devices'2002 6,372,859'Thermoresistance adhesive and semiconductor device using the same'2002 6,268,892'Non-pealing anti-reflective film for a cathode ray tube and method of making the same'2001 6,217,377'Electric circuit connection container'2001 6,066,851'Radiation deep dose measuring apparatus and corpuscular beam detector'2000 6,060,215'Photosensitive resin composition and application of its photosensitivity'2000 6,031,689'Magnetic disc reading head having reduced friction with a floppy disk'2000 5,907,156'Wide range radiation detector'1999 5,905,263'Depth dose measuring device'1999 5,877,917'Floppy disk unit'1999 5,856,673'Depth dose measuring apparatus'1999 5,847,071'Photosensitive resin composition'1998 5,774,515'Particle measuring apparatus, method for particle measurement, and nuclear power plant'1998 5,668,248'Photosensitive resin composition'1997 5,610,780'Floppy disk unit'1997 5,540,857'Purification of liquid crystals and liquid crystal composition'1996 5,502,264'Method of preparing unsaturated dimers of .alpha.-methylstyrenes'1996 5,472,823'Photosensitive resin composition'1995 5,469,425'Method of manufacturing an index apparatus'1995 5,422,034'Purification of liquid crystals and liquid crystal composition'1995 5,415,892'Method of impregnating a winding assembly of an electrical equipment with varnish'1995 5,383,265'Method for fixing FG magnet'1995 5,210,665'Floppy disk apparatus having an improved disk rotating mechanism'1993 5,164,816'Integrated circuit device produced with a resin layer produced from a heat-resistant resin paste'1992 5,138,606'Disk drive device having a swingable lever carrying pin and positioned in a space between a rotary plate and a magnetic member mounted on the rotary plate'1992 5,087,658'Heat-resistant resin paste and integrated circuit device produced by using the heat-resistant resin paste'1992 5,046,170'Information carrier disk housing having incorrect insertion prevention'1991 5,037,862'Polyamide-imide resin pastes'1991 4,954,612'Solvent-soluble polyimide and production thereof'1990 4,791,157'Polyetheramide-imide polymer composition'1988 4,770,875'Process for preparation of improved mutant strain of Bordetella bronchiseptica useful for live attenuated vaccine for protection of B. bronchiseptica infection and live attenuated AR vaccine produced therefrom'1988 4,614,782'Heat resistant resin composition'1986 4,562,532'Main storage configuration control system'1985 4,505,980'Insulated wire'1985 4,497,944'Process for producing polyamide-imide resin'1985 4,494,885'Compact printer'1985 4,493,858'Method for insulating slots in rotors of electrical rotating machines'1985 4,458,589'Compact printer having a typefont belt with a type-free portion'1984 4,448,844'Heat resistant resin and process for producing the same'1984 4,447,589'Method for preparing polyamide-imide resin'1984 4,431,758'Heat resistant resin composition comprising reaction product of polyamideimide resin, alcohol and acid component.'1984 4,427,822'Process for producing particulate polymer having imide groups'1984 4,398,100'Booster circuit'1983 4,237,251'Polyesteramides and process for producing the same'1980 4,119,679'Powder coating composition'1978 4,022,955'Thermosetting coating composition comprising a hydroxy acrylate ester copolymer and N-acylpolylactam or N-acylpolyimide'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2009Patents assigned to HITACHI CHEMICAL CO LTD (24)· patent assignee history

1980–2009Based in Kitaibaraki, JP· patent location history

1983–2019Patents assigned to MITSUBISHI ELECTRIC CORP (16)· patent assignee history

1991–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (13)· patent assignee history

1991–2000Based in Hanamaki, JP· patent location history

1998–2020Based in Tokyo, JP· patent location history

2002–2017Based in Kanagawa, JP· patent location history

2002–2009Based in Yokohama, JP· patent location history

2012–2016Patents assigned to NISHIZAWA HIROSHI (8)· patent assignee history

2014–2020Patents assigned to NSK LTD (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CHEMICAL CO LTD	24	1977–2009
MITSUBISHI ELECTRIC CORP	16	1983–2019
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	13	1991–2008
NISHIZAWA HIROSHIself	8	2012–2016
NSK LTD	6	2014–2020

Locations

Location	Patents	Span
Kitaibaraki, JP	17	1980–2009
Tokyo, JP	15	1998–2020
Kanagawa, JP	9	2002–2017
Hanamaki, JP	8	1991–2000
Yokohama, JP	6	2002–2009