Inventor

Yasuo Niwa

Inventor

Tokyo, JP

Overview

7→

Patents

1988–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 7 as inventor

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

C03Cprimary

C03CChemical composition of glasses, glazes or vitreous enamels14%

C04BLime, magnesia14%

C23CCoating metallic material14%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation14%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form9%

H01GCapacitors9%

F23DBurners5%

F23LSupplying air or non-combustible liquids or gases to combustion apparatus in general5%

F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general5%

H01BCables5%

PatentTitleYear

10,605,485Water heater2020 7,781,357'Dielectric ceramic composition'2010 7,312,172'Dielectric ceramic composition, electronic device and production methods of the same'2007 6,949,486'Dielectric ceramic composition, electronic device and their process of manufacturing'2005 4,835,007'Method of manufacturing a photoelectric conversion device'1989 4,781,767'Photoelectric conversion device'1988 4,724,157'Method of manufacturing a photoelectric conversion device'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2010Patents assigned to TDK CORP (6)· patent assignee history

1988–1989Based in Tokyo, JP· patent location history

2005Based in Akita, JP· patent location history

2007Based in Chuo-ku, JP· patent location history

2010Based in Yurihonjo, JP· patent location history

2020Patents assigned to RINNAI KK (1)· patent assignee history

2020Based in Nagoya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TDK CORP	6	1988–2010
RINNAI KK	1	2020

Locations

Location	Patents	Span
Tokyo, JP	3	1988–1989
Nagoya, JP	1	2020
Yurihonjo, JP	1	2010
Chuo-ku, JP	1	2007
Akita, JP	1	2005