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Inventor

Sachiko Nasu

Inventor
Tokyo, JP

Overview

4→
Patents
2004–2019
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus67%
A61BDiagnosis33%
PatentTitleYear
10,209,506Light source optical system having tapered light guide rod201910,088,666Endoscope and variable power optical system for the same20188,164,839'Endoscope and objective lens for the same'20126,683,730'Variable-focus lens system'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to PENTAX PREC CO LTD (1)· patent assignee history
2004Based in Kanagawa, JP· patent location history
2012–2019Patents assigned to HOYA CORP (3)· patent assignee history
2012Patents assigned to NASU SACHIKO (1)· patent assignee history
2012–2019Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOYA CORP32012–2019
NASU SACHIKOself12012
PENTAX PREC CO LTD12004
Locations
LocationPatentsSpan
Tokyo, JP32012–2019
Kanagawa, JP12004