Inventor

Masakazu Fujita

Inventor

Tokyo, JP

Overview

1976–2017

Patent span

Physics

Primary field (CPC G)

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

G01Rprimary

G01RMeasuring electric variables21%

G01NInvestigating or analysing materials by determining their chemical or physical properties16%

D02GCrimping or curling fibres, filaments, threads, or yarns11%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems11%

Y10TTechnical subjects covered by former us classification11%

A41DOuterwear5%

A62BDevices, apparatus or methods for life-saving5%

D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%

D01HSpinning or twisting5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1976–1978Patents assigned to KAWASAKI STEEL CO (2)· patent assignee history

1976–1999Based in Tokyo, JP· patent location history

1990–1999Patents assigned to TEIJIN LTD (3)· patent assignee history

1990–1992Based in Ikoma, JP· patent location history

2002–2006Patents assigned to TAIYO YUDEN KK (3)· patent assignee history

2002–2006Based in Miyagi, JP· patent location history

2016–2017Patents assigned to FUJITA MASAKAZU (2)· patent assignee history

2016–2017Patents assigned to RICOH CO LTD (2)· patent assignee history

2016–2017Based in Kanagawa, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations