Inventor

Tsugito Nakazeki

Inventor

Iwata, JP

Overview

30→

Patents

1979–2013

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 30 as inventor

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

F16Cprimary

F16CShafts19%

F04DNon-positive-displacement pumps10%

A61MDevices for introducing media into, or onto, the body8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%

G01FMeasuring volume, volume flow, mass flow or liquid level6%

Y10TTechnical subjects covered by former us classification6%

F02DControlling combustion engines4%

F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g4%

F16HGearing4%

PatentTitleYear

8,347,648'Air cycle refrigerating/cooling system and turbine unit used therefor'2013 8,336,328'Air cycle refrigerating/cooling system and turbine unit used therefor'2012 8,215,898'Turbine unit for refrigerating/cooling air cycle'2012 7,810,616'Electric direct-acting actuator and electric brake device'2010 7,780,569'Traction drive type continuously variable transmission'2010 6,672,767'Dynamic bearing device and motor having the same'2004 6,502,992'Hydrodynamic type bearing unit'2003 6,431,757'Hydrodynamic type bearing unit'2002 6,390,681'Dynamic pressure bearing-unit'2002 6,129,660'Method of controlling blood pump'2000 6,102,822'Pulley'2000 6,030,188'Centrifugal blood pump assembly having magnetic material embedded in impeller vanes'2000 5,986,448'Revolving speed detecting device with reduced eddy current loss'1999 5,947,703'Centrifugal blood pump assembly'1999 5,911,558'Magnetically suspended pump having position sensing control'1999 5,798,454'Magnetically suspended device with function of measuring viscosity'1998 5,725,357'Magnetically suspended type pump'1998 5,350,283'Clean pump'1994 5,260,965'Laser processing apparatus and laser processing method'1993 5,112,202'Turbo pump with magnetically supported impeller'1992 4,686,404'Controlled radial magnetic bearing device'1987 4,373,490'Fuel injection apparatus'1983 4,333,435'Fuel injection device'1982 4,285,313'Air flow measuring device'1981 4,285,312'Air flow measuring device for internal combustion engines'1981 4,239,028'Air flow measuring device for internal combustion engines'1980 4,205,636'Apparatus for controlling the air fuel mixture of an internal combustion engine'1980 4,200,120'Area type flow rate measuring device'1980 4,164,923'Fuel injection device for internal combustion engines'1979 4,153,018'Air flow measuring device for internal combustion engines'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2013Patents assigned to NTN TOYO BEARING CO LTD (28)· patent assignee history

1979–2013Based in Iwata, JP· patent location history

1980Patents assigned to N T N TOYO BEARING CO LTD (1)· patent assignee history

1981–2013Patents assigned to NAKAZEKI TSUGITO (4)· patent assignee history

1981–2000Based in Shizuoka, JP· patent location history

2000–2010Based in Kuwana, JP· patent location history

2012–2013Patents assigned to OZAKI TAKAYOSHI (3)· patent assignee history

2012–2013Patents assigned to YAMADA HIROYUKI (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NTN TOYO BEARING CO LTD	28	1979–2013
NAKAZEKI TSUGITOself	4	1981–2013
OZAKI TAKAYOSHI	3	2012–2013
YAMADA HIROYUKI	3	2012–2013
N T N TOYO BEARING CO LTD	1	1980

Locations

Location	Patents	Span
Iwata, JP	14	1979–2013
Shizuoka, JP	10	1981–2000
Kuwana, JP	6	2000–2010