Nobuya Sekiyama

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Composite structure
- Patent number 10,788,064
- Issue date Sep 29, 2020
- Hitachi, Ltd.
- Kenichiro Kunitomo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fuel injection valve
- Patent number 9,464,612
- Issue date Oct 11, 2016
- Hitachi Automotive Systems, Ltd.
- Yoshio Okamoto
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Frictionally sliding head magnet disk apparatus
- Patent number 5,825,591
- Issue date Oct 20, 1998
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk having improved surface configuration and magnetic di...
- Patent number 5,680,285
- Issue date Oct 21, 1997
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing magnetic disk
- Patent number 5,549,211
- Issue date Aug 27, 1996
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk having improved surface configuration and magnetic di...
- Patent number 5,388,020
- Issue date Feb 7, 1995
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Simultaneous double sides polishing method
- Patent number 5,364,655
- Issue date Nov 15, 1994
- Hitachi Ltd.
- Takao Nakamura
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic disk unit having magnetic disks and a magnetic head with a...
- Patent number 5,353,182
- Issue date Oct 4, 1994
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk having an improved surface configuration
- Patent number 5,202,810
- Issue date Apr 13, 1993
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Composite Structure
- Publication number 20180073531
- Publication date Mar 15, 2018
- Hitachi, Ltd
- Kenichiro KUNITOMO
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fuel Injection Valve
- Publication number 20130256428
- Publication date Oct 3, 2013
- Hitachi Automotive Systems, Ltd.
- Yoshio OKAMOTO
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
LINEAR ACTUATOR AND FORKLIFT TRUCK
- Publication number 20120012425
- Publication date Jan 19, 2012
- Isao Hayase
- B66 - HOISTING LIFTING HAULING

Nobuya Sekiyama

Person

Patents Grantslast 30 patents

Composite structure

Fuel injection valve

Frictionally sliding head magnet disk apparatus

Magnetic disk having improved surface configuration and magnetic di...

Method of producing magnetic disk

Magnetic disk having improved surface configuration and magnetic di...

Simultaneous double sides polishing method

Magnetic disk unit having magnetic disks and a magnetic head with a...

Magnetic disk having an improved surface configuration

Patents Applicationslast 30 patents

Composite Structure

Fuel Injection Valve

LINEAR ACTUATOR AND FORKLIFT TRUCK