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Inventor

Yoshimi Kudo

Inventor
Yamagata, JP

Overview

2→
Patents
2006–2007
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.

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers40%
B21BRolling of metal20%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
7,308,750'Method of manufacturing a magnesium diaphragm'20077,027,609'Diaphragm for speakers'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2007Patents assigned to PIONEER TOHOKU CORP (2)· patent assignee history
2006–2007Based in Yamagata, JP· patent location history
2007Patents assigned to PIONEER CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PIONEER TOHOKU CORP22006–2007
PIONEER CORP12007
Locations
LocationPatentsSpan
Yamagata, JP22006–2007