Toshio Takizawa

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic-disk substrate and magnetic disk
- Patent number 12,094,506
- Issue date Sep 17, 2024
- Hoya Corporation
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Grant
Polishing solution, polishing solution set, polishing method, and d...
- Patent number 11,926,764
- Issue date Mar 12, 2024
- Resonac Corporation
- Masayuki Hanano
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polishing liquid, method for manufacturing glass substrate, and met...
- Patent number 11,680,187
- Issue date Jun 20, 2023
- Hoya Corporation
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Polishing liquid, polishing liquid set and polishing method
- Patent number 11,649,377
- Issue date May 16, 2023
- Resonac Corporation
- Masayuki Hanano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic-disk substrate and magnetic disk
- Patent number 11,587,585
- Issue date Feb 21, 2023
- Hoya Corporation
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Grant
Polishing liquid, method for manufacturing glass substrate, and met...
- Patent number 11,214,713
- Issue date Jan 4, 2022
- Hoya Corporation
- Toshio Takizawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Hard disk drive with magnetic-disk substrate and hard disk drive wi...
- Patent number 11,081,134
- Issue date Aug 3, 2021
- Hoya Corporation
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk substrate with specified changes in height or depth b...
- Patent number 10,607,647
- Issue date Mar 31, 2020
- Hoya Corporation
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic-disk substrate and magnetic disk
- Patent number 10,283,156
- Issue date May 7, 2019
- Hoya Corporation
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Grant
Polishing liquid for CMP, and polishing method
- Patent number 10,155,886
- Issue date Dec 18, 2018
- Hitachi Chemical Company, Ltd.
- Munehiro Oota
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Magnetic disk substrate with specified changes in height or depth b...
- Patent number 9,697,861
- Issue date Jul 4, 2017
- Hoya Corporation
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic-disk glass substrate and magnetic disk
- Patent number 9,564,166
- Issue date Feb 7, 2017
- Hoya Corporation
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Grant
Polishing liquid and method for polishing substrate using the polis...
- Patent number 9,564,337
- Issue date Feb 7, 2017
- Hitachi Chemical Co., Ltd.
- Munehiro Oota
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic disk substrate with offset portion on a main surface withi...
- Patent number 9,183,866
- Issue date Nov 10, 2015
- Hoya Corporation
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for producing glass substrate for magnetic disk and method f...
- Patent number 9,038,417
- Issue date May 26, 2015
- Hoya Corporation
- Toshio Takizawa
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic disk substrate, magnetic disk, and magnetic disk device
- Patent number 8,986,859
- Issue date Mar 24, 2015
- Hoya Corporation
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for producing glass substrate for magnetic disk and method f...
- Patent number 8,763,428
- Issue date Jul 1, 2014
- Hoya Corporation
- Toshio Takizawa
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic disk substrate, magnetic disk, and magnetic disk device
- Patent number 8,241,768
- Issue date Aug 14, 2012
- Hoya Corporation
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Secret identification number checking system
- Patent number 5,267,315
- Issue date Nov 30, 1993
- Oki Electric Industry Co., Ltd.
- Kiyokazu Narita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System for authenticating an authorized user of an IC card
- Patent number 5,146,068
- Issue date Sep 8, 1992
- Oki Electric Industry Co., Ltd.
- Akira Ugawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC card reader/writer and IC card transactions processing apparatus...
- Patent number 5,070,233
- Issue date Dec 3, 1991
- Oki Electric Industry Co., Ltd.
- Toshio Takizawa
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, ANNULAR-SHAPED SUBSTRATE, A...
- Publication number 20240233764
- Publication date Jul 11, 2024
- HOYA CORPORATION
- Shuhei AZUMA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, ANNULAR-SHAPED SUBSTRATE, A...
- Publication number 20240135970
- Publication date Apr 25, 2024
- HOYA CORPORATION
- Shuhei AZUMA
- G11 - INFORMATION STORAGE
Information Patent Application
POLISHING LIQUID, POLISHING LIQUID SET, POLISHING METHOD, AND DEFEC...
- Publication number 20230295466
- Publication date Sep 21, 2023
- Resonac Corporation
- Hisato TAKAHASHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POLISHING LIQUID AND METHOD FOR MANUFACTURING GLASS SUBSTRATE
- Publication number 20230287244
- Publication date Sep 14, 2023
- HOYA CORPORATION
- Toshio TAKIZAWA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MAGNETIC-DISK SUBSTRATE AND MAGNETIC DISK
- Publication number 20230197111
- Publication date Jun 22, 2023
- HOYA CORPORATION
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR MANUFACTURING MAGN...
- Publication number 20220298053
- Publication date Sep 22, 2022
- HOYA CORPORATION
- Toshio TAKIZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
POLISHING SOLUTION, POLISHING SOLUTION SET, POLISHING METHOD, AND D...
- Publication number 20220162476
- Publication date May 26, 2022
- Showa Denko Materials Co., Ltd.
- Masayuki HANANO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLISHING LIQUID, METHOD FOR MANUFACTURING GLASS SUBSTRATE, AND MET...
- Publication number 20220119680
- Publication date Apr 21, 2022
- HOYA CORPORATION
- Toshio TAKIZAWA
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
MAGNETIC-DISK SUBSTRATE AND MAGNETIC DISK
- Publication number 20210327464
- Publication date Oct 21, 2021
- HOYA CORPORATION
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Application
POLISHING LIQUID, POLISHING LIQUID SET AND POLISHING METHOD
- Publication number 20200299544
- Publication date Sep 24, 2020
- Hitachi Chemical Company, Ltd.
- Masayuki HANANO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POLISHING LIQUID, POLISHING LIQUID SET, POLISHING METHOD, ANDDEFECT...
- Publication number 20200283659
- Publication date Sep 10, 2020
- Hitachi Chemical Company, Ltd.
- Hisato TAKAHASHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POLISHING LIQUID, METHOD FOR MANUFACTURING GLASS SUBSTRATE, AND MET...
- Publication number 20200208015
- Publication date Jul 2, 2020
- HOYA CORPORATION
- Toshio TAKIZAWA
- B24 - GRINDING POLISHING
Information Patent Application
HARD DISK DRIVE WITH MAGNETIC-DISK SUBSTRATE AND HARD DISK DRIVE WI...
- Publication number 20190228801
- Publication date Jul 25, 2019
- Hoya Corporation
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK SUBSTRATE WITH SPECIFIED CHANGES IN HEIGHT OR DEPTH B...
- Publication number 20170270956
- Publication date Sep 21, 2017
- HOYA CORPORATION
- Toshio TAKIZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC-DISK GLASS SUBSTRATE AND MAGNETIC DISK
- Publication number 20170186459
- Publication date Jun 29, 2017
- HOYA CORPORATION
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Application
POLISHING LIQUID AND METHOD FOR POLISHING SUBSTRATE USING THE POLIS...
- Publication number 20170133237
- Publication date May 11, 2017
- Hitachi Chemical Company, Ltd.
- Munehiro Oota
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLISHING LIQUID FOR CMP, AND POLISHING METHOD
- Publication number 20160137881
- Publication date May 19, 2016
- Hitachi Chemical Company, Ltd.
- Munehiro OOTA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MAGNETIC DISK SUBSTRATE WITH OFFSET PORTION ON A MAIN SURFACE WITHI...
- Publication number 20150340054
- Publication date Nov 26, 2015
- HOYA CORPORATION
- Toshio TAKIZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC-DISK GLASS SUBSTRATE AND MAGNETIC DISK
- Publication number 20150213826
- Publication date Jul 30, 2015
- HOYA GLASS DISK VIETNAM II LTD.
- Masanobu Itaya
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE
- Publication number 20150109703
- Publication date Apr 23, 2015
- HOYA GLASS DISK (Thailand) LTD.
- Toshio TAKIZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR PRODUCING GLASS SUBSTRATE FOR MAGNETIC DISK AND METHOD F...
- Publication number 20140248424
- Publication date Sep 4, 2014
- HOYA CORPORATION
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Application
POLISHING LIQUID AND METHOD FOR POLISHING SUBSTRATE USING THE POLIS...
- Publication number 20130260558
- Publication date Oct 3, 2013
- HITACHI CHEMICAL CO., Ltd.
- Munehiro Oota
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE
- Publication number 20120276416
- Publication date Nov 1, 2012
- HOYA GLASS DISK (THAILAND) LTD.
- Toshio TAKIZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE
- Publication number 20100040907
- Publication date Feb 18, 2010
- HOYA CORPORATION
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Application
Method For Producing Glass Substrate For Magnetic Disk And Method F...
- Publication number 20090158775
- Publication date Jun 25, 2009
- HOYA CORPORATION
- Toshio Takizawa
- B24 - GRINDING POLISHING
Information Patent Application
Method of producing a glass substrate for a magnetic recording medi...
- Publication number 20030077982
- Publication date Apr 24, 2003
- Hoya Corporation
- Toshio Takizawa
- B24 - GRINDING POLISHING

Toshio Takizawa

Person

Patents Grantslast 30 patents

Magnetic-disk substrate and magnetic disk

Polishing solution, polishing solution set, polishing method, and d...

Polishing liquid, method for manufacturing glass substrate, and met...

Polishing liquid, polishing liquid set and polishing method

Magnetic-disk substrate and magnetic disk

Polishing liquid, method for manufacturing glass substrate, and met...

Hard disk drive with magnetic-disk substrate and hard disk drive wi...

Magnetic disk substrate with specified changes in height or depth b...

Magnetic-disk substrate and magnetic disk

Polishing liquid for CMP, and polishing method

Magnetic disk substrate with specified changes in height or depth b...

Magnetic-disk glass substrate and magnetic disk

Polishing liquid and method for polishing substrate using the polis...

Magnetic disk substrate with offset portion on a main surface withi...

Method for producing glass substrate for magnetic disk and method f...

Magnetic disk substrate, magnetic disk, and magnetic disk device

Method for producing glass substrate for magnetic disk and method f...

Magnetic disk substrate, magnetic disk, and magnetic disk device

Secret identification number checking system

System for authenticating an authorized user of an IC card

IC card reader/writer and IC card transactions processing apparatus...

Patents Applicationslast 30 patents

MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, ANNULAR-SHAPED SUBSTRATE, A...

MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, ANNULAR-SHAPED SUBSTRATE, A...

POLISHING LIQUID, POLISHING LIQUID SET, POLISHING METHOD, AND DEFEC...

POLISHING LIQUID AND METHOD FOR MANUFACTURING GLASS SUBSTRATE

MAGNETIC-DISK SUBSTRATE AND MAGNETIC DISK

METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR MANUFACTURING MAGN...

POLISHING SOLUTION, POLISHING SOLUTION SET, POLISHING METHOD, AND D...

POLISHING LIQUID, METHOD FOR MANUFACTURING GLASS SUBSTRATE, AND MET...

MAGNETIC-DISK SUBSTRATE AND MAGNETIC DISK

POLISHING LIQUID, POLISHING LIQUID SET AND POLISHING METHOD

POLISHING LIQUID, POLISHING LIQUID SET, POLISHING METHOD, ANDDEFECT...

POLISHING LIQUID, METHOD FOR MANUFACTURING GLASS SUBSTRATE, AND MET...

HARD DISK DRIVE WITH MAGNETIC-DISK SUBSTRATE AND HARD DISK DRIVE WI...

MAGNETIC DISK SUBSTRATE WITH SPECIFIED CHANGES IN HEIGHT OR DEPTH B...

MAGNETIC-DISK GLASS SUBSTRATE AND MAGNETIC DISK

POLISHING LIQUID AND METHOD FOR POLISHING SUBSTRATE USING THE POLIS...

POLISHING LIQUID FOR CMP, AND POLISHING METHOD

MAGNETIC DISK SUBSTRATE WITH OFFSET PORTION ON A MAIN SURFACE WITHI...

MAGNETIC-DISK GLASS SUBSTRATE AND MAGNETIC DISK

MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE

METHOD FOR PRODUCING GLASS SUBSTRATE FOR MAGNETIC DISK AND METHOD F...

POLISHING LIQUID AND METHOD FOR POLISHING SUBSTRATE USING THE POLIS...

MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE

MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE

Method For Producing Glass Substrate For Magnetic Disk And Method F...

Method of producing a glass substrate for a magnetic recording medi...