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Inventor

Naoya Nakai

Inventor
Tokyo, JP

Overview

4→
Patents
2015–2021
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 apparatus30%
G01CMeasuring distances, levels or bearings10%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them10%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices10%
G03HHolographic processes or apparatus10%
H01JElectric discharge tubes or discharge lamps10%
H04NPictorial communication, e.g. television10%
PatentTitleYear
11,099,352Operating apparatus202110,641,607Height detection apparatus and charged particle beam apparatus20209,851,548Optical microscope device and testing apparatus comprising same20179,104,118'Exposure device and method for producing structure'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015–2020Patents assigned to HITACHI HIGH TECH CORP (3)· patent assignee history
2015–2020Based in Tokyo, JP· patent location history
2017Patents assigned to NAKAI NAOYA (1)· patent assignee history
2017Patents assigned to NIIBORI TETSUYA (1)· patent assignee history
2017Patents assigned to OKU MIZUKI (1)· patent assignee history
2021Patents assigned to CANON KK (1)· patent assignee history
2021Based in Kawaguchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI HIGH TECH CORP32015–2020
CANON KK12021
NAKAI NAOYAself12017
NIIBORI TETSUYA12017
OKU MIZUKI12017
Locations
LocationPatentsSpan
Tokyo, JP32015–2020
Kawaguchi, JP12021