Inventor

Toshimasa Utaka

Inventor
Chiba, JP

Overview

5→
Patents
2001–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C10Mprimary
C10MLubricating compositions36%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions36%
C01BNon-metallic elements9%
C10LFuels not otherwise provided for9%
Y02PClimate change mitigation technologies in the production or processing of goods9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2020Patents assigned to IDEMITSU KOSAN CO (5)· patent assignee history
2001Based in Fukuoka, JP· patent location history
2017–2020Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IDEMITSU KOSAN CO52001–2020
Locations
LocationPatentsSpan
Chiba, JP42017–2020
Fukuoka, JP12001