Inventor

Ryoji Nakagawa

Inventor

Tokyo, JP

Overview

1990–2021

Patent span

Performing operations

Primary field (CPC B)

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

B23Kprimary

B23KSoldering or unsoldering17%

G01NInvestigating or analysing materials by determining their chemical or physical properties17%

H01FMagnets17%

A23BPreservation of foods, foodstuffs or non-alcoholic beverages8%

B60GVehicle suspension arrangements8%

B62DMotor vehicles8%

G01RMeasuring electric variables8%

G05BControl or regulating systems in general8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to SHIBUYA KOGYO CO LTD (1)· patent assignee history

1990Based in Kanazawa, JP· patent location history

1999Based in Sapporo, JP· patent location history

2002Patents assigned to HONDA MOTOR CO LTD (1)· patent assignee history

2002Based in Saitama, JP· patent location history

2015–2021Patents assigned to HITACHI LTD (4)· patent assignee history

2015–2021Based in Tokyo, JP· patent location history

2015Based in Hitachi, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations