Inventor

Yukiyoshi Hara

Inventor
Ageo, JP

Overview

4→
Patents
1990–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 4 as inventor

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

C23Cprimary
C23CCoating metallic material18%
Y10TTechnical subjects covered by former us classification18%
F23CMethods or apparatus for combustion using fluid fuel or solid fuel suspended in  a carrier gas or air9%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers9%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
G09FDisplaying9%
H01LSemiconductor devices9%
H10DInorganic electric semiconductor devices9%
Y02TClimate change mitigation technologies related to transportation9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1993Patents assigned to TOKYO ELECTRIC POWER CO (3)· patent assignee history
1990–1993Patents assigned to HITACHI LTD (2)· patent assignee history
1990Based in Saitama, JP· patent location history
1991Patents assigned to TOSHIBA KK (1)· patent assignee history
1991–1993Based in Ageo, JP· patent location history
2021Patents assigned to SHARP KK (1)· patent assignee history
2021Based in Sakai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO ELECTRIC POWER CO31990–1993
HITACHI LTD21990–1993
SHARP KK12021
TOSHIBA KK11991
Locations
LocationPatentsSpan
Ageo, JP21991–1993
Sakai, JP12021
Saitama, JP11990