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Inventor

Yoshimasa Hayama

Inventor
Hitachinaka, JP

Overview

5→
Patents
1992–2014
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

A47Lprimary
A47LDomestic washing or cleaning38%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling25%
B23DPlaning13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,919,235'Cutting apparatus'20147,966,691'Dust collector'20117,871,463'Dust collection device'20117,296,323'Dust collector'2007D0328080'Electric plane'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to HITACHI KOKI HARAMACHI CO LTD (1)· patent assignee history
1992Based in Fukushima, JP· patent location history
2007–2014Patents assigned to HITACHI KOKI KK (4)· patent assignee history
2007–2011Based in Ibaraki, JP· patent location history
2011–2014Based in Hitachinaka, JP· patent location history
2014Patents assigned to ENYA TOSHIHIRO (1)· patent assignee history
2014Patents assigned to HAYAMA YOSHIMASA (1)· patent assignee history
2014Patents assigned to SUDOU JUNICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI KOKI KK42007–2014
ENYA TOSHIHIRO12014
HAYAMA YOSHIMASAself12014
HITACHI KOKI HARAMACHI CO LTD11992
SUDOU JUNICHI12014
Locations
LocationPatentsSpan
Hitachinaka, JP22011–2014
Ibaraki, JP22007–2011
Fukushima, JP11992