Inventor

Kenji Okuna

Inventor
Seto, JP

Overview

17→
Patents
1983–2011
Patent span
Physics
Primary field (CPC G)

Patents· 17 as inventor

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

G07Dprimary
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing20%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables18%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes18%
G07FCoin-freed or like apparatus18%
G03GElectrography11%
B41JTypewriters5%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof5%
B82YSpecific uses or applications of nanostructures2%
F04BPositive-displacement machines for liquids2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2010Patents assigned to HITACHI LTD (13)· patent assignee history
1983–1992Patents assigned to HITACHI KOKI KK (5)· patent assignee history
1983Based in Shimoinayoshi, JP· patent location history
1988–1992Patents assigned to HITACHI METALS LTD (4)· patent assignee history
1988–1992Based in Ibaraki, JP· patent location history
1999Based in Niihari-gun, JP· patent location history
2000–2011Based in Seto, JP· patent location history
2007–2011Patents assigned to HITACHI OMRON TERMINAL SOLUTIONS CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD131983–2010
HITACHI KOKI KK51983–1992
HITACHI METALS LTD41988–1992
HITACHI OMRON TERMINAL SOLUTIONS CORP32007–2011
Locations
LocationPatentsSpan
Seto, JP102000–2011
Ibaraki, JP51988–1992
Niihari-gun, JP11999
Shimoinayoshi, JP11983