Inventor

Tamotsu Katayama

Inventor
Tokyo, JP

Overview

9→
Patents
2002–2018
Patent span
Performing operations
Primary field (CPC B)

Patents· 9 as inventor

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

B41Jprimary
B41JTypewriters33%
B65CLabelling or tagging machines, apparatus, or processes17%
G09BEducational or demonstration appliances17%
LOC1817%
E05CBolts or fastening devices for wings, specially for doors or windows8%
LOC198%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to KYOTO KAGAKU COMPANY LTD (1)· patent assignee history
2002Based in Kyoto, JP· patent location history
2013Patents assigned to KATAYAMA TAMOTSU (1)· patent assignee history
2013Patents assigned to SATO CHISHIKI ZAISAN KENKYUSYO (1)· patent assignee history
2013–2017Based in Tokyo, JP· patent location history
2016–2018Patents assigned to SATO HOLDINGS KK (6)· patent assignee history
2017–2018Based in Saitama, JP· patent location history
2018Patents assigned to KYOTO KAGAKU CO LTD (1)· patent assignee history
2018Based in Otsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SATO HOLDINGS KK62016–2018
KATAYAMA TAMOTSUself12013
KYOTO KAGAKU CO LTD12018
KYOTO KAGAKU COMPANY LTD12002
SATO CHISHIKI ZAISAN KENKYUSYO12013
Locations
LocationPatentsSpan
Tokyo, JP52013–2017
Saitama, JP22017–2018
Otsu, JP12018
Kyoto, JP12002