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Inventor

Koichi Tsuda

Inventor
Kanagawa, JP

Overview

11→
Patents
1978–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 11 as inventor

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

H01Cprimary
H01CResistors56%
C04BLime, magnesia19%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%
C08LCompositions of macromolecular compounds6%
H10NElectric solid-state devices not otherwise provided for6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
10,759,924Surface-coated acetylacetone metal salt and method for producing same202010,546,671Voltage nonlinear resistor20205,422,336'Superconducting FET with Pr-Ba-Cu-O channel'19955,140,296'Voltage-dependent nonlinear resistor'19924,981,624'Method of producing a voltage-nonlinear resistor'19914,725,807'Nonlinear voltage resistor'19884,579,702'Zinc oxide voltage nonlinear resistors'19864,477,793'Zinc oxide non-linear resistor'19844,473,812'Voltage-dependent nonlinear resistor'19844,386,022'Voltage non-linear resistance ceramics'19834,069,061'Ceramics having nonlinear voltage characteristics'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1995Patents assigned to FUJI ELECTRIC CO LTD (8)· patent assignee history
1978–1983Based in Kawasaki, JP· patent location history
1984Patents assigned to FUJI ELECTRIC RES (2)· patent assignee history
1984–1992Based in Kanagawa, JP· patent location history
1992Patents assigned to FUJI ELECTRONIC CORP LTD (1)· patent assignee history
1995Based in Yokosuka, JP· patent location history
2020Patents assigned to HITACHI LTD (1)· patent assignee history
2020Patents assigned to SAKAI CHEMICAL INDUSTRY CO (1)· patent assignee history
2020Based in Osaka, JP· patent location history
2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI ELECTRIC CO LTD81978–1995
FUJI ELECTRIC RES21984
FUJI ELECTRONIC CORP LTD11992
HITACHI LTD12020
SAKAI CHEMICAL INDUSTRY CO12020
Locations
LocationPatentsSpan
Kanagawa, JP61984–1992
Kawasaki, JP21978–1983
Osaka, JP12020
Tokyo, JP12020
Yokosuka, JP11995