Inventor

Koh Fujimura

Inventor

Tokyo, JP

Overview

1987–2020

Patent span

Physics

Primary field (CPC G)

Patents· 34 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein42%

C09KMaterials for miscellaneous applications, not provided for elsewhere15%

G09GArrangements or circuits for control of indicating devices using static means to present variable information8%

Y10TTechnical subjects covered by former us classification8%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

C07DHeterocyclic compounds5%

G06KGraphical data reading5%

H10DInorganic electric semiconductor devices3%

H10KOrganic electric solid-state devices3%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments2%

PatentTitleYear

10,626,133Electrochromic compound, electrochromic composition, and display element2020 10,527,905Electrochromic element, display device and driving method thereof2020 10,093,693Electrochromic compound, electrochromic composition, and display element2018 9,932,522Electrochromic compound, electrochromic composition, display element, and dimming element2018 9,869,918'Electrochromic apparatus, electrochromic element, and method of manufacturing electrochromic element'2018 9,829,762Electrochromic display element, display device, information system, and electrochromic dimming lens2017 9,688,706'Electrochromic compound, electrochromic composition, display element, and dimming element'2017 9,632,385'Electrochromic display device with intermediate display electrode containing electrically conductive fine particle and a method for manufacturing such device'2017 9,500,926'Electrochromic display element and image display device'2016 9,389,480'Method for manufacturing an electrochromic display device and an electrochromic display device having through-hole in display electrode'2016 9,304,368'Electrochromic device and production method thereof'2016 9,069,222'Electrochromic display element and display device'2015 9,041,997'Electro-chromic display element, display apparatus, and driving method'2015 8,937,758'Electrochromic display device'2015 8,902,151'Controllable electrochromic display device'2014 8,736,941'Electrochromic display apparatus and method of manufacturing the same'2014 8,687,262'Ion conductor and electrochromic display device'2014 8,531,754'Electrochromic display element'2013 8,384,983'Electrochromic display device, fabrication method therefor, and driving method therefor'2013 8,158,020'Liquid crystal element, optical path deflecting element, and image displaying apparatus'2012 7,929,071'Electric field generating device comprising an electric field generating resistor and line electrodes, light deflecting device having the same, and image display apparatus having the same'2011 7,902,680'Layered structure, electron device, and an electron device array having a variable wettability layer and semiconductor layer formed thereon'2011 7,612,455'Layered structure for electron device including regions of different wettability, electron device and electron device array that uses such a layered structure'2009 7,489,383'Optical axis deflecting method, optical axis deflecting element, optical path deflecting unit, method of driving optical axis deflecting element, and image display apparatus'2009 5,184,239'Sealing structure of liquid crystal injection holes in liquid crystal display device'1993 5,169,693'Liquid crystal display element'1992 5,030,384'Liquid crystal composition'1991 4,836,654'Drive method for a dual-frequency, dielectric anisotropy liquid crystal optical device'1989 4,832,460'Liquid crystal apparatus having pressure absorbing means'1989 4,759,870'Liquid crystal composition'1988 4,745,433'Image forming apparatus with a light shutter of the G-H type liquid crystal'1988 4,740,328'Liquid crystal composition'1988 4,688,899'Dual-frequency, dielectric anisotropy liquid crystal display'1987 4,647,156'Liquid crystal device'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2020Based in Tokyo, JP· patent location history

1988Based in Fussa, JP· patent location history

1989–1993Based in Hino, JP· patent location history

2011–2020Patents assigned to RICOH CO LTD (22)· patent assignee history

2012–2020Patents assigned to FUJIMURA KOH (20)· patent assignee history

2013–2020Patents assigned to YASHIRO TOHRU (19)· patent assignee history

2013–2020Patents assigned to HIRANO SHIGENOBU (17)· patent assignee history

2013–2020Patents assigned to NAIJO YOSHIHISA (17)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH CO LTD	22	2011–2020
FUJIMURA KOHself	20	2012–2020
YASHIRO TOHRU	19	2013–2020
HIRANO SHIGENOBU	17	2013–2020
NAIJO YOSHIHISA	17	2013–2020

Locations

Location	Patents	Span
Tokyo, JP	30	1987–2020
Hino, JP	3	1989–1993
Fussa, JP	1	1988