Inventor

TAKESHI YAMAKAWA

Inventor
JP

Overview

17→
Patents
2021–2026
Patent span
Physics
Primary field (CPC G)

Patents· 17 as inventor

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

A47Kprimary
A47KSanitary equipment9%
E03DWater-closets or urinals with flushing devices9%
B05BSpraying apparatus6%
G02BOptical elements, systems or apparatus6%
B60WConjoint control of vehicle sub-units of different type or different function4%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
C25DProcesses for the electrolytic or electrophoretic production of coatings4%
F16KValves4%
H04NPictorial communication, e.g. television4%
H05KPrinted circuits4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2022Patents assigned to HITACHI ASTEMO LTD (2)· patent assignee history
2021–2026Based in JP· patent location history
2022–2023Patents assigned to TOTO LTD (5)· patent assignee history
2022–2024Patents assigned to TOYOTA MOTOR CO LTD (5)· patent assignee history
2022–2024Patents assigned to TOYOTA ENG & MFG NORTH AMERICA (3)· patent assignee history
2023–2024Patents assigned to RICOH CO LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOTO LTD52022–2023
TOYOTA MOTOR CO LTD52022–2024
RICOH CO LTD32023–2024
TOYOTA ENG & MFG NORTH AMERICA32022–2024
HITACHI ASTEMO LTD22021–2022
Locations
LocationPatentsSpan
JP172021–2026