Inventor

Hiroaki Yoneyama

Inventor
Ohtake, JP

Overview

4→
Patents
1991–2003
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

D01Fprimary
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons43%
B01DSeparation14%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry14%
B02CCrushing, pulverising, or disintegrating in general14%
Y10TTechnical subjects covered by former us classification14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1994Patents assigned to MITSUBISHI RAYON CO (3)· patent assignee history
1991–1994Based in Ohtake, JP· patent location history
1992Based in Otake, JP· patent location history
2003Patents assigned to MEIKO SHOKAI KK (1)· patent assignee history
2003Based in Kasugai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI RAYON CO31991–1994
MEIKO SHOKAI KK12003
Locations
LocationPatentsSpan
Ohtake, JP21991–1994
Kasugai, JP12003
Otake, JP11992