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Inventor

Toshio Ozone

Inventor
Nagoya, JP

Overview

7→
Patents
1984–1999
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

C22Cprimary
C22CAlloys64%
C21DModifying the physical structure of ferrous metals18%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
PatentTitleYear
5,897,717'High strength spring steel and process for producing same'19995,009,843'Spring steel having good durability and sag-resistance'19914,770,721'Process of treating steel for a vehicle suspension spring to improve sag-resistance'19884,711,675'Process for improving the sag-resistance and hardenability of a spring steel'19874,574,016'Method of treating steel for a vehicle suspension spring having a good sag-resistance'19864,544,406'Spring steel having a good sag-resistance and a good hardenability'19854,448,617'Steel for a vehicle suspension spring having good sag-resistance'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1999Patents assigned to CHUO HATSUJO KK (7)· patent assignee history
1984–1991Patents assigned to AICHI STEEL WORKS LTD (6)· patent assignee history
1984–1999Based in Nagoya, JP· patent location history
1986–1991Based in Aichi, JP· patent location history
1988Based in Nagiya, JP· patent location history
1991Patents assigned to TOYOTA MOTOR CO LTD (1)· patent assignee history
1999Patents assigned to HONDA MOTOR CO LTD (1)· patent assignee history
1999Patents assigned to NIPPON STEEL CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHUO HATSUJO KK71984–1999
AICHI STEEL WORKS LTD61984–1991
HONDA MOTOR CO LTD11999
NIPPON STEEL CORP11999
TOYOTA MOTOR CO LTD11991
Locations
LocationPatentsSpan
Nagoya, JP41984–1999
Aichi, JP21986–1991
Nagiya, JP11988