LexDanaLexDanabeta
Inventor

Tomoyoshi Okamura

Inventor
Higashi-Ibaraki-gun, JP

Overview

7→
Patents
2001–2004
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

F04Dprimary
F04DNon-positive-displacement pumps37%
F01DNon-positive displacement machines or engines, e.g. steam turbines21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants16%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g5%
PatentTitleYear
6,736,594'Axial-flow type hydraulic machine'20046,582,189'Turbo machines'20036,540,482'Turbo-type machines'20036,514,034'Pump'20036,435,819'Turbo machines'20026,302,643'Turbo machines'20016,290,458'Turbo machines'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2004Patents assigned to HITACHI LTD (7)· patent assignee history
2001–2004Patents assigned to JUNICHI KUROKAWA (2)· patent assignee history
2001–2003Patents assigned to KUROKAWA JUNICHI (2)· patent assignee history
2001–2003Based in Higashi-Ibaraki-gun, JP· patent location history
2003–2004Based in Minori, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD72001–2004
JUNICHI KUROKAWA22001–2004
KUROKAWA JUNICHI22001–2003
Locations
LocationPatentsSpan
Higashi-Ibaraki-gun, JP42001–2003
Minori, JP32003–2004