Inventor

Junko Yamamoto

Inventor

Yokohama-shi, Kanagawa, JP

Overview

10→

Patents

1993–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 10 as inventor

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

B61Lprimary

B61LGuiding railway traffic25%

B60LPropulsion of electrically-propelled vehicles21%

Y02TClimate change mitigation technologies related to transportation17%

G03GElectrography8%

C07CAcyclic or carbocyclic compounds4%

C07DHeterocyclic compounds4%

C09KMaterials for miscellaneous applications, not provided for elsewhere4%

G01MTesting static or dynamic balance of machines or structures4%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%

G05DSystems for controlling or regulating non-electric variables4%

PatentTitleYear

10,766,367Train control device2020 10,633,590Liquid crystal composition and liquid crystal display device including the same2020 10,569,793Train control device2020 10,363,948Train control device, train control method and computer program product2019 10,137,911Running curve creation device, running curve creation method and running curve control program2018 8,374,739'Train control device having a target speed calculation function'2013 8,370,008'Train control system'2013 5,966,453'Speaker system for use in an automobile vehicle'1999 5,382,490'Electrophotographic toner'1995 5,225,305'Electrophotographic toner'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1995Patents assigned to NIPPON KAYAKU KK (2)· patent assignee history

1995Based in Kawaguchi, JP· patent location history

1999Based in Saitama, JP· patent location history

2013Patents assigned to TOSHIBA CORP (2)· patent assignee history

2013Patents assigned to YAMAMOTO JUNKO (2)· patent assignee history

2013–2018Based in Kanagawa, JP· patent location history

2018–2020Patents assigned to TOSHIBA KK (4)· patent assignee history

2019–2020Based in Yokohama-shi, Kanagawa, JP· patent location history

2020Patents assigned to DAINIPPON INK & CHEMICALS (1)· patent assignee history

2020Based in Kita-adachi-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOSHIBA KK	4	2018–2020
NIPPON KAYAKU KK	2	1993–1995
TOSHIBA CORP	2	2013
YAMAMOTO JUNKOself	2	2013
DAINIPPON INK & CHEMICALS	1	2020

Locations

Location	Patents	Span
Yokohama-shi, Kanagawa, JP	3	2019–2020
Kanagawa, JP	3	2013–2018
Kita-adachi-gun, JP	1	2020
Saitama, JP	1	1999
Kawaguchi, JP	1	1995