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Inventor

Naoya Tetsumura

Inventor
Hamamatsu, JP

Overview

2→
Patents
1990–1999
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.

G10Cprimary
G10CPianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards33%
G10HElectrophonic musical instruments33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
5,973,241'Keyboard musical instrument having an improved cover opening/closing mechanism'19994,936,185'Electronic musical instrument having plural component blocks'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1999Patents assigned to YAMAHA CORP (2)· patent assignee history
1990–1999Based in Hamamatsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
YAMAHA CORP21990–1999
Locations
LocationPatentsSpan
Hamamatsu, JP21990–1999