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Inventor

Toyomi Yoshida

Inventor
Tokyo, JP

Overview

5→
Patents
1989–2013
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

A63Fprimary
A63FCard, board, or roulette games10%
F01DNon-positive displacement machines or engines, e.g. steam turbines10%
F04DNon-positive-displacement pumps10%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants10%
F16CShafts10%
F16JPistons10%
G06FElectric digital data processing10%
H01HElectric switches10%
H03HImpedance networks, e.g. resonant circuits10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
8,388,311'Turbomachinery'20135,837,952'Mat switch'1998D0325753'Toy vehicle'19924,992,714'Band pass filter device and a method of filtering using such a device'1991D0303273'Toy vehicle'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1998Patents assigned to COMBI CO (2)· patent assignee history
1989–1992Based in Tokyo, JP· patent location history
1991–2013Patents assigned to HITACHI LTD (2)· patent assignee history
1991Based in Shimoinayoshi, JP· patent location history
1992Patents assigned to COMBI CORP (1)· patent assignee history
1998Based in Saitama, JP· patent location history
2013Patents assigned to KUDO TAKESHI (1)· patent assignee history
2013Patents assigned to MAGARA YOHEI (1)· patent assignee history
2013Based in Kasumigaura, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COMBI CO21989–1998
HITACHI LTD21991–2013
COMBI CORP11992
KUDO TAKESHI12013
MAGARA YOHEI12013
Locations
LocationPatentsSpan
Tokyo, JP21989–1992
Kasumigaura, JP12013
Saitama, JP11998
Shimoinayoshi, JP11991