Inventor

Takahiko Nishiyama

Inventor
Kanagawa, JP

Overview

9→
Patents
1979–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus26%
H02NElectric machines not otherwise provided for26%
Y10TTechnical subjects covered by former us classification16%
H10NElectric solid-state devices not otherwise provided for11%
C22CAlloys5%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general5%
H01LSemiconductor devices5%
Y02TClimate change mitigation technologies related to transportation5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to NIPPON OIL SEAL IND CO LTD (1)· patent assignee history
1979Based in Kamakura, JP· patent location history
2009–2020Patents assigned to MITSUMI ELECTRIC CO LTD (8)· patent assignee history
2009–2011Based in Kanagawa, JP· patent location history
2015–2020Patents assigned to NISHIYAMA TAKAHIKO (3)· patent assignee history
2015–2016Patents assigned to TANAKA TOYOKI (2)· patent assignee history
2015–2016Patents assigned to YAMADA TSUKASA (2)· patent assignee history
2015–2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUMI ELECTRIC CO LTD82009–2020
NISHIYAMA TAKAHIKOself32015–2020
TANAKA TOYOKI22015–2016
YAMADA TSUKASA22015–2016
NIPPON OIL SEAL IND CO LTD11979
Locations
LocationPatentsSpan
Kanagawa, JP52009–2011
Tokyo, JP32015–2020
Kamakura, JP11979