Inventor

Akira Hamanaka

Inventor
Tokyo, JP

Overview

6→
Patents
1988–2013
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

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

B29Cprimary
B29CShaping or joining of plastics17%
B29DProducing particular articles from plastics or from substances in a plastic state17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
Y10TTechnical subjects covered by former us classification17%
B24BMachines, devices, or processes for grinding or polishing11%
B29LIndexing scheme associated with subclass b29c, relating to particular articles6%
G02BOptical elements, systems or apparatus6%
H01JElectric discharge tubes or discharge lamps6%
Y02PClimate change mitigation technologies in the production or processing of goods6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to SONY CORP (1)· patent assignee history
1988Based in Setagaya, JP· patent location history
2008–2013Patents assigned to HOYA CORP (5)· patent assignee history
2008–2013Based in Tokyo, JP· patent location history
2012–2013Patents assigned to HAMANAKA AKIRA (2)· patent assignee history
2012Patents assigned to DAIMARU TAKASHI (1)· patent assignee history
2013Patents assigned to SAGAMI DAIJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOYA CORP52008–2013
HAMANAKA AKIRAself22012–2013
DAIMARU TAKASHI12012
SAGAMI DAIJI12013
SONY CORP11988
Locations
LocationPatentsSpan
Tokyo, JP52008–2013
Setagaya, JP11988