Inventor
HIRATA KAZUYUKI
JP45 patents
⚠️ This page may combine multiple inventors who share the name “HIRATA KAZUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYOTA BOSHOKU KK
27 patentsUS10737315B2Aug 11, 2020
Press die
TOYOTA BOSHOKU KK2 citations73
US10328482B2Jun 25, 2019
Method for manufacturing metal compact and apparatus for manufacturing metal compact
TOYOTA BOSHOKU KK3 citations73
US10150152B2Dec 11, 2018
Sheet metal forming method and apparatus
TOYOTA BOSHOKU KK4 citations73
US9962751B2May 8, 2018
Metal plate forming method and forming device
TOYOTA BOSHOKU KK2 citations73
US9962754B2May 8, 2018
Pressing method and pressing device for forming punched piece by punching metal plate with die and punch
TOYOTA BOSHOKU KK3 citations73
US9656314B2May 23, 2017
Press die
TOYOTA BOSHOKU KK4 citations73
US9587679B2Mar 7, 2017
Method and apparatus for manufacturing rolling-element bearing
TOYOTA BOSHOKU KK3 citations73
US9227239B2Jan 5, 2016
Forming die apparatus and die member
TOYOTA BOSHOKU KK4 citations71
US9630229B2Apr 25, 2017
Device for molding and method for molding metal plate
TOYOTA BOSHOKU KK5 citations67
US10421114B2Sep 24, 2019
Workpiece manufacturing apparatus
TOYOTA BOSHOKU KK1 citations62
US10384250B2Aug 20, 2019
Method for forming metal plate and apparatus for forming metal plate
TOYOTA BOSHOKU KK1 citations62
US12311425B2May 27, 2025
Workpiece production apparatus
TOYOTA BOSHOKU KK0 citations52
US10478886B2Nov 19, 2019
Stamping method and stamping apparatus
TOYOTA BOSHOKU KK0 citations52
US10381660B2Aug 13, 2019
Separator for fuel cell
TOYOTA BOSHOKU KK0 citations52
US9757787B2Sep 12, 2017
Metal plate stamping method and stamping apparatus
TOYOTA BOSHOKU KK0 citations52
US9735436B2Aug 15, 2017
Separator for fuel cell
TOYOTA BOSHOKU KK0 citations52
US9511576B2Dec 6, 2016
Rotary lamination apparatus
TOYOTA BOSHOKU KK0 citations50
US12226962B2Feb 18, 2025
Method for manufacturing fuel cell separator
TOYOTA BOSHOKU KK0 citations48
US10071411B2Sep 11, 2018
Press die
TOYOTA BOSHOKU KK1 citations44
US10486219B2Nov 26, 2019
Metal plate punching method and metal plate punching system
TOYOTA BOSHOKU KK0 citations42
US10265750B2Apr 23, 2019
Press die apparatus
TOYOTA BOSHOKU KK0 citations42
US9550227B2Jan 24, 2017
Press molding machine
TOYOTA BOSHOKU KK0 citations42
US9246360B2Jan 26, 2016
Laminate of metal plates, core for rotating electrical machine, and laminating method for laminate of metal plates
TOYOTA BOSHOKU KK0 citations42
US9233409B2Jan 12, 2016
Press die
TOYOTA BOSHOKU KK0 citations42
US12280695B2Apr 22, 2025
Position controlling device
TOYOTA BOSHOKU KK0 citations41
US10507591B2Dec 17, 2019
Workpiece manufacturing apparatus
TOYOTA BOSHOKU KK0 citations39
US10799928B2Oct 13, 2020
Method and apparatus for forming metal sheet
TOYOTA BOSHOKU KK0 citations34
SEIKO EPSON CORP
10 patentsUS10967644B2Apr 6, 2021
Exterior body, liquid storage body unit and liquid discharge apparatus
SEIKO EPSON CORP2 citations73
US10464331B2Nov 5, 2019
Liquid container
SEIKO EPSON CORP3 citations72
US10434784B2Oct 8, 2019
Cartridge and connector
SEIKO EPSON CORP2 citations70
US12017459B2Jun 25, 2024
Liquid container
SEIKO EPSON CORP0 citations62
US11052667B2Jul 6, 2021
Gas-absorbing apparatus, liquid housing, liquid housing container and liquid ejecting apparatus
SEIKO EPSON CORP1 citations62
US12459272B2Nov 4, 2025
Liquid container
SEIKO EPSON CORP0 citations52
US12304213B2May 20, 2025
Liquid container
SEIKO EPSON CORP0 citations52
US9809034B2Nov 7, 2017
Liquid supply unit having filter
SEIKO EPSON CORP0 citations42
US10328707B2Jun 25, 2019
Liquid container
SEIKO EPSON CORP0 citations40
US10843472B2Nov 24, 2020
Liquid housing container, liquid housing apparatus, and liquid ejecting apparatus
SEIKO EPSON CORP0 citations39
HIRATA KAZUYUKI
7 patentsUS9440281B2Sep 13, 2016
Device and method for manufacturing work
HIRATA KAZUYUKI2 citations62
US8844600B2Sep 30, 2014
Rotary lamination apparatus
HIRATA KAZUYUKI2 citations62
US8770077B2Jul 8, 2014
Punch press device
HIRATA KAZUYUKI3 citations62
US9016345B2Apr 28, 2015
Rotary lamination apparatus
HIRATA KAZUYUKI1 citations49
US9017506B2Apr 28, 2015
Method for manufacturing core of rotating electrical machine
HIRATA KAZUYUKI0 citations41
US8915279B2Dec 23, 2014
Rotary lamination apparatus
HIRATA KAZUYUKI0 citations41
US8485238B2Jul 16, 2013
Stamping-laminating apparatus and method
HIRATA KAZUYUKI0 citations41