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Inventor

Hiroyuki Katou

Inventor
Hiki-gun, JP

Overview

2→
Patents
2004–2006
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus50%
H01PWaveguides50%
PatentTitleYear
7,009,470'Waveguide-type dielectric filter'20066,707,133'Semiconductor chip having an arrayed waveguide grating and module containing the semiconductor chip'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to NEC CORP (1)· patent assignee history
2004Based in Tokyo, JP· patent location history
2006Patents assigned to TOKO INC (1)· patent assignee history
2006Based in Hiki-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NEC CORP12004
TOKO INC12006
Locations
LocationPatentsSpan
Hiki-gun, JP12006
Tokyo, JP12004