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Inventor

Kyoji Fujiwara

Inventor
Fukuoka, JP

Overview

4→
Patents
1996–2003
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E01Fprimary
E01FAdditional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like27%
E04BGeneral building constructions27%
G10KSound-producing devices27%
E04CStructural elements9%
E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates9%
PatentTitleYear
6,568,135'Sound absorbing structure'20036,035,965'Sound absorbing body, sound absorbing board, and sound absorbing unit'20005,854,453'Sound absorbing body, sound absorbing plate, and sound absorbing unit'19985,532,440'Light transmissive sound absorbing member'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2000Patents assigned to NITTO BOSEKI CO LTD (3)· patent assignee history
1996–2000Based in Fukuoka, JP· patent location history
2003Patents assigned to ALUMU CORP (1)· patent assignee history
2003Patents assigned to NICHIAS CORP (1)· patent assignee history
2003Patents assigned to YOTSUMOTO ACOUSTIC DESIGN INC (1)· patent assignee history
2003Based in Chikushi-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NITTO BOSEKI CO LTD31996–2000
ALUMU CORP12003
NICHIAS CORP12003
YOTSUMOTO ACOUSTIC DESIGN INC12003
Locations
LocationPatentsSpan
Fukuoka, JP31996–2000
Chikushi-gun, JP12003