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Inventor

Yukiko Iwai

Inventor
Gunma, JP

Overview

2→
Patents
1994–1996
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H04Mprimary
H04MTelephonic communication100%
PatentTitleYear
5,528,681'Automatic dialing device and auxiliary dialing device for a telephone'19965,325,428'Automatic switching-back device for telephone circuit'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to IWAI SEIZO (1)· patent assignee history
1994Patents assigned to IWAI TSUNEKO (1)· patent assignee history
1994Patents assigned to IWAI YUKIKO (1)· patent assignee history
1994Patents assigned to IWAI YUMIKO (1)· patent assignee history
1994–1996Based in Gunma, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IWAI SEIZO11994
IWAI TSUNEKO11994
IWAI YUKIKOself11994
IWAI YUMIKO11994
Locations
LocationPatentsSpan
Gunma, JP21994–1996