Inventor

Takashi Hayakawa

Inventor

Nara, JP

Overview

50→

Patents

1976–2020

Patent span

Physics

Primary field (CPC G)

Patents· 50 as inventor

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

G03Gprimary

G03GElectrography26%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

C07CAcyclic or carbocyclic compounds6%

H01LSemiconductor devices6%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

G02BOptical elements, systems or apparatus3%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%

H10BElectronic memory devices3%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation3%

PatentTitleYear

10,593,556Method of fabricating semiconductor device, vacuum processing apparatus and substrate processing apparatus2020 10,374,963Predictive management of a network buffer2019 10,325,780Method of manufacturing semiconductor device2019 9,686,201'Predictive management of a network buffer'2017 9,632,432'Exposure apparatus, stage apparatus, and device fabrication method for transferring a pattern of a reticle onto a substrate'2017 9,449,844'Etching method, etching apparatus, and storage medium'2016 8,957,300'Substrate for photoelectric conversion device, photoelectric conversion device, and stacked photoelectric conversion device'2015 8,951,908'Method for manufacturing semiconductor device'2015 8,283,253'Pattern forming method, semiconductor device manufacturing method and semiconductor device manufacturing apparatus'2012 8,187,788'Photosensitive resin composition and photosensitive film'2012 7,574,743'Method for ensuring security, data storage apparatus, security ensuring server, and storage medium storing program for the same'2009 7,542,107'Method of letting a sufficient quantity of light pass through each of apertures for entry of backlight'2009 7,108,415'Optical element with light extracting dots and display device using same'2006 6,459,034'Multi-junction solar cell'2002 6,189,485'Plasma CVD apparatus suitable for manufacturing solar cell and the like'2001 6,071,849'Catalyst for oxidative condensation of lower aliphatic hydrocarbon and method of condensing lower aliphatic hydrocarbon using same'2000 5,933,726'Method of forming a semiconductor device have a screen stacked cell capacitor'1999 5,804,479'Method for forming semiconductor integrated circuit device having a capacitor'1998 5,754,925'Imaging forming apparatus with enhanced cleaning of residual matter using a developing/cleaning device'1998 5,708,929'Contact charging image forming apparatus having improved image transfer'1998 5,689,778'Image forming apparatus'1997 5,602,659'Liquid crystal light valve with photoconductor including light absorbing and light blocking layers of non-alloy amorphous silicon'1997 5,592,263'Charging device'1997 5,563,691'Image-forming apparatus'1996 5,555,079'Image forming apparatus for preventing damage to conductive fibers on a charging member'1996 5,426,488'Method of charging a built-in electrophotographic charge member'1995 5,398,102'Electrophotographic copier and charging means used therefor'1995 5,338,582'Photoconductor coupled liquid crystal light valve'1994 5,324,549'Method of fabricating photoconductor coupled liquid crystal light valve'1994 5,245,059'Method for the preparation of 2,3,5-trimethylbenzoquinone'1993 5,239,397'Liquid crystal light valve with amorphous silicon photoconductor of amorphous silicon and hydrogen or a halogen'1993 D0334337'Wire binder'1993 5,164,281'Photosensitive body for electrophotography containing amorphous silicon layers'1992 5,126,499'Process for the production of hydrocarbons with two or more carbon atoms from methane'1992 5,100,749'Photosensitive member for electrophotography'1992 5,085,968'Amorphous, layered, photosensitive member for electrophotography and ECR process'1992 5,057,391'Photosensitive member for electrophotography and process for making using electron cyclotron resonance'1991 5,009,977'Photosensitive member for electrophotography having amorphous silicon'1991 4,994,855'Electrophotographic image formation apparatus with two bias voltage sources'1991 4,992,348'Electrophotographic photosensitive member comprising amorphous silicon'1991 4,990,423'Photosensitive member for electrophotography'1991 4,971,878'Amorphous silicon photosensitive member for use in electrophotography'1990 4,952,712'Process for the preparation of 2,3-dimethoxy-5-methylbenzoquinone'1990 4,943,503'Amorphous silicon photoreceptor'1990 4,853,309'Photoreceptor for electrophotography with a-Si layers having a gradient concentration of doped atoms and sandwiching the photoconductive layer therebetween'1989 4,687,724'Photoreceptor for electrophotography comprising boron doped a-Si.sub.1-x N.sub.x :H:F'1987 4,666,816'Method of manufacturing an amorphous Si electrophotographic photoreceptor'1987 4,615,299'Plasma CVD apparatus for making photoreceptor drum'1986 4,400,544'Method for the preparation of cyclohexanone'1983 3,969,428'Process for the production of conjugated diolefins'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2000Patents assigned to AGENCY IND SCIENCE TECHN (6)· patent assignee history

1976–2020Based in Tokyo, JP· patent location history

1986–2015Patents assigned to SHARP KK (26)· patent assignee history

1986–1990Based in Tenri, JP· patent location history

1990–1994Based in Nara, JP· patent location history

1994–2001Based in Soraku-gun, JP· patent location history

1995–2015Based in Kyoto, JP· patent location history

2012–2020Patents assigned to TOKYO ELECTRON LTD (5)· patent assignee history

2012–2015Patents assigned to HAYAKAWA TAKASHI (3)· patent assignee history

2017–2019Patents assigned to CABLE TELEVISION LABORATORIES INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHARP KK	26	1986–2015
AGENCY IND SCIENCE TECHN	6	1976–2000
TOKYO ELECTRON LTD	5	2012–2020
HAYAKAWA TAKASHIself	3	2012–2015
CABLE TELEVISION LABORATORIES INC	2	2017–2019

Locations

Location	Patents	Span
Nara, JP	11	1990–1994
Tokyo, JP	8	1976–2020
Soraku-gun, JP	8	1994–2001
Tenri, JP	5	1986–1990
Kyoto, JP	4	1995–2015