Inventor

Kazuyoshi Chizuka

Inventor

Hiroshima, JP

Overview

17→

Patents

2000–2011

Patent span

Performing operations

Primary field (CPC B)

Patents· 17 as inventor

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

B60Nprimary

B60NSeats specially adapted for vehicles35%

A47CChairs16%

F16FSprings13%

A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons3%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general3%

B23BTurning3%

B24BMachines, devices, or processes for grinding or polishing3%

B61DBody details or kinds of railway vehicles3%

B64DEquipment for fitting in or to aircraft3%

B68GMethods, equipment, or machines for use in upholstering3%

PatentTitleYear

8,052,214'Seat structure'2011 7,845,733'Seat'2010 7,731,294'Seat'2010 7,303,229'Seat construction'2007 7,104,607'Seat'2006 7,044,551'Seat structure'2006 7,025,423'Seat structure'2006 6,921,132'Seat structure'2005 6,817,674'Seat structure'2004 6,489,000'Cushion having a three-dimensional net'2002 6,485,103'Structural unit having net member incorporated therein, seat and method for treating end section of net member'2002 6,366,190'Magneto-spring structure'2002 6,336,627'Suspension unit having a magneto-spring'2002 6,315,364'Cushion and seat each having net-like skin'2001 6,302,487'Seat having a three-dimensional net'2001 6,241,059'Vibration isolator having magnetic springs'2001 6,084,329'Vibration mechanism having a magnetic spring'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2011Patents assigned to DELTA TOOLING CO LTD (17)· patent assignee history

2000–2011Based in Hiroshima, JP· patent location history

2001Patents assigned to KANEBO GOSEN LTD (1)· patent assignee history

2001Patents assigned to KANEBO LTD (1)· patent assignee history

2001Patents assigned to SUMINOE TEXTILE (1)· patent assignee history

2010Patents assigned to TOYOTA CHUO KENKYUSHO KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DELTA TOOLING CO LTD	17	2000–2011
KANEBO GOSEN LTD	1	2001
KANEBO LTD	1	2001
SUMINOE TEXTILE	1	2001
TOYOTA CHUO KENKYUSHO KK	1	2010

Locations

Location	Patents	Span
Hiroshima, JP	17	2000–2011