Inventor

Johji Yamaguchi

Inventor
Kanagawa, JP

Overview

12→
Patents
2005–2021
Patent span
Physics
Primary field (CPC G)

Patents· 12 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus48%
B81BMicrostructural devices or systems, e.g. micromechanical devices22%
Y10TTechnical subjects covered by former us classification17%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
H04QSelecting4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2014Patents assigned to NIPPON TELEGRAPH & TELEPHONE (11)· patent assignee history
2005–2014Based in Kanagawa, JP· patent location history
2012–2014Patents assigned to YAMAGUCHI JOHJI (8)· patent assignee history
2012–2014Patents assigned to UCHIYAMA SHINGO (7)· patent assignee history
2012–2014Patents assigned to SASAKURA KUNIHIKO (5)· patent assignee history
2012–2014Patents assigned to SHIMOKAWA FUSAO (5)· patent assignee history
2021Based in Hamamatsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE112005–2014
YAMAGUCHI JOHJIself82012–2014
UCHIYAMA SHINGO72012–2014
SASAKURA KUNIHIKO52012–2014
SHIMOKAWA FUSAO52012–2014
Locations
LocationPatentsSpan
Kanagawa, JP112005–2014
Hamamatsu, JP12021