Jun Zhang

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Polishing sheet, polishing tool and polishing method
- Patent number 10,105,814
- Issue date Oct 23, 2018
- Ricoh Company, Ltd.
- Kiyotaka Sawada
- B24 - GRINDING POLISHING
Information Patent Grant
Polishing sheet and polishing tool
- Patent number 9,440,331
- Issue date Sep 13, 2016
- Ricoh Company, Ltd.
- Kiyotaka Sawada
- B24 - GRINDING POLISHING
Information Patent Grant
Nozzle plate, nozzle plate production method, liquid discharge head...
- Patent number 8,911,061
- Issue date Dec 16, 2014
- Ricoh Company, Ltd.
- Kiyotaka Sawada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Surface polishing method and apparatus thereof
- Patent number 7,470,171
- Issue date Dec 30, 2008
- Ricoh Company, Ltd.
- Jun Zhang
- B24 - GRINDING POLISHING
Information Patent Grant
Abrasive grain and method for producing it, polishing tool and meth...
- Patent number 7,396,372
- Issue date Jul 8, 2008
- Ricoh Company, Ltd.
- Hiroyuki Endoh
- B24 - GRINDING POLISHING
Information Patent Grant
Abrasive grain and method for producing it, polishing tool and meth...
- Patent number 7,141,086
- Issue date Nov 28, 2006
- Ricoh Company, Ltd.
- Hiroyuki Endoh
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS, AND METHOD FOR M...
- Publication number 20240316933
- Publication date Sep 26, 2024
- Jun ZHANG
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS
- Publication number 20240269988
- Publication date Aug 15, 2024
- Toshihiro KANEMATSU
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, LIQUID DISCHARGE AP...
- Publication number 20230373214
- Publication date Nov 23, 2023
- Sho KAWAKAMI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
POLISHING SHEET, POLISHING TOOL AND POLISHING METHOD
- Publication number 20160221147
- Publication date Aug 4, 2016
- RICOH COMPANY, LTD.
- Kiyotaka SAWADA
- B24 - GRINDING POLISHING
Information Patent Application
POLISHING SHEET AND POLISHING TOOL
- Publication number 20150165592
- Publication date Jun 18, 2015
- RICOH COMPANY, LTD.
- Kiyotaka Sawada
- B24 - GRINDING POLISHING
Information Patent Application
ABRASIVE GRAIN, POLISHER, AND PRODUCTION METHOD OF ABRASIVE GRAIN
- Publication number 20150057209
- Publication date Feb 26, 2015
- RICOH COMPANY, LTD.
- Kiyotaka Sawada
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
NOZZLE PLATE, NOZZLE PLATE PRODUCTION METHOD, LIQUID DISCHARGE HEAD...
- Publication number 20140078220
- Publication date Mar 20, 2014
- RICOH COMPANY, LTD.
- Kiyotaka Sawada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
ABRASIVE GRAIN AND METHOD FOR PRODUCING IT, POLISHING TOOL AND METH...
- Publication number 20070062124
- Publication date Mar 22, 2007
- Hiroyuki Endoh
- B24 - GRINDING POLISHING
Information Patent Application
Surface polishing method and apparatus thereof
- Publication number 20060172663
- Publication date Aug 3, 2006
- Jun Zhang
- B24 - GRINDING POLISHING
Information Patent Application
Abrasive grain and method for producing it, grinding tool and metho...
- Publication number 20040040216
- Publication date Mar 4, 2004
- Hiroyuki Endoh
- B24 - GRINDING POLISHING

Person

Patents Grantslast 30 patents

Polishing sheet, polishing tool and polishing method

Polishing sheet and polishing tool

Nozzle plate, nozzle plate production method, liquid discharge head...

Surface polishing method and apparatus thereof

Abrasive grain and method for producing it, polishing tool and meth...

Abrasive grain and method for producing it, polishing tool and meth...

Patents Applicationslast 30 patents

LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS, AND METHOD FOR M...

LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS

LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, LIQUID DISCHARGE AP...

POLISHING SHEET, POLISHING TOOL AND POLISHING METHOD

POLISHING SHEET AND POLISHING TOOL

ABRASIVE GRAIN, POLISHER, AND PRODUCTION METHOD OF ABRASIVE GRAIN

NOZZLE PLATE, NOZZLE PLATE PRODUCTION METHOD, LIQUID DISCHARGE HEAD...

ABRASIVE GRAIN AND METHOD FOR PRODUCING IT, POLISHING TOOL AND METH...

Surface polishing method and apparatus thereof

Abrasive grain and method for producing it, grinding tool and metho...