Tazumi Nagasawa

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic head with conductive non-magnetic layer contact configurat...
- Patent number 12,148,453
- Issue date Nov 19, 2024
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic sensor, magnetic head, and magnetic recording device
- Patent number 12,142,306
- Issue date Nov 12, 2024
- Kabushiki Kaisha Toshiba
- Tazumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 12,080,325
- Issue date Sep 3, 2024
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 12,033,676
- Issue date Jul 9, 2024
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,881,234
- Issue date Jan 23, 2024
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,869,540
- Issue date Jan 9, 2024
- Kabushiki Kaisha Toshiba
- Tazumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including multiple magnetic layers and magnetic recor...
- Patent number 11,810,601
- Issue date Nov 7, 2023
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,721,359
- Issue date Aug 8, 2023
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,710,501
- Issue date Jul 25, 2023
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device including a stacked bod...
- Patent number 11,705,152
- Issue date Jul 18, 2023
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device
- Patent number 11,631,423
- Issue date Apr 18, 2023
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,615,808
- Issue date Mar 28, 2023
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device and magnetic recording method utilizing a...
- Patent number 11,568,890
- Issue date Jan 31, 2023
- Kabushiki Kaisha Toshiba
- Hirofumi Suto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,521,644
- Issue date Dec 6, 2022
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device including a magnetic head including a sta...
- Patent number 11,495,250
- Issue date Nov 8, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Evaluation method of magnetic head and evaluation device of magneti...
- Patent number 11,488,623
- Issue date Nov 1, 2022
- Kabushiki Kaisha Toshiba
- Hirofumi Suto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device having magnetic layers...
- Patent number 11,462,239
- Issue date Oct 4, 2022
- Kabushiki Kaisha Toshiba
- Tazumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device including a stacked bod...
- Patent number 11,443,762
- Issue date Sep 13, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device with stacked body mater...
- Patent number 11,437,059
- Issue date Sep 6, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with stacked body having non-magnetic layers and diff...
- Patent number 11,398,244
- Issue date Jul 26, 2022
- Kabushiki Kaisha Toshiba
- Masayuki Takagishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,393,493
- Issue date Jul 19, 2022
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including stacked body with changing electrical resis...
- Patent number 11,380,352
- Issue date Jul 5, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for high density magnetic recording device
- Patent number 11,348,606
- Issue date May 31, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including stacked body having plural of intermediate...
- Patent number 11,217,272
- Issue date Jan 4, 2022
- Kabushiki Kaisha Toshiba
- Hirofumi Suto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device having magnetic layers...
- Patent number 11,138,994
- Issue date Oct 5, 2021
- Kabushiki Kaisha Toshiba
- Tazumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including plural magnetic layers and plural intermedi...
- Patent number 11,087,781
- Issue date Aug 10, 2021
- Kabushiki Kaisha Toshiba
- Masayuki Takagishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having specific distance between magnetic pole, stack...
- Patent number 11,062,728
- Issue date Jul 13, 2021
- Kabushiki Kaisha Toshiba
- Masayuki Takagishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for evaluating magnetic head and evaluation apparatus of mag...
- Patent number 11,062,730
- Issue date Jul 13, 2021
- Kabushiki Kaisha Toshiba
- Hirofumi Suto
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic head
- Patent number 11,004,464
- Issue date May 11, 2021
- Kabushiki Kaisha Toshiba
- Hirofumi Suto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device
- Patent number 10,978,098
- Issue date Apr 13, 2021
- Kabushiki Kaisha Toshiba
- Naoyuki Narita
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240371400
- Publication date Nov 7, 2024
- Kabushiki Kaisha Toshiba
- Satoshi SHIROTORI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240363141
- Publication date Oct 31, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240296865
- Publication date Sep 5, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD WITH MULTIPLE LAYERS AND MAGNETIC RECORDING DEVICE
- Publication number 20240296862
- Publication date Sep 5, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD WITH MULTILAYER CONFIGURATION BETWEEN MAGNETIC POLES...
- Publication number 20240296861
- Publication date Sep 5, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240257829
- Publication date Aug 1, 2024
- Kabushiki Kaisha Toshiba
- Satoshi SHIROTORI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE
- Publication number 20240233760
- Publication date Jul 11, 2024
- Kabushiki Kaisha Toshiba
- Tazumi NAGASAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240233755
- Publication date Jul 11, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE
- Publication number 20240233754
- Publication date Jul 11, 2024
- Kabushiki Kaisha Toshiba
- Tazumi NAGASAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE
- Publication number 20240135961
- Publication date Apr 25, 2024
- Kabushiki Kaisha Toshiba
- Tazumi NAGASAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240135962
- Publication date Apr 25, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE
- Publication number 20240135967
- Publication date Apr 25, 2024
- Kabushiki Kaisha Toshiba
- Tazumi NAGASAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20240046959
- Publication date Feb 8, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230335154
- Publication date Oct 19, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230326482
- Publication date Oct 12, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230267961
- Publication date Aug 24, 2023
- Kabushiki Kaisha Toshiba
- Tazumi NAGASAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230178102
- Publication date Jun 8, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230062839
- Publication date Mar 2, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230046928
- Publication date Feb 16, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICE
- Publication number 20230045730
- Publication date Feb 9, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230031273
- Publication date Feb 2, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220399033
- Publication date Dec 15, 2022
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220383898
- Publication date Dec 1, 2022
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220375494
- Publication date Nov 24, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi IWASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220270640
- Publication date Aug 25, 2022
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220270641
- Publication date Aug 25, 2022
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICE AND MAGNETIC RECORDING METHOD
- Publication number 20220157336
- Publication date May 19, 2022
- Kabushiki Kaisha Toshiba
- Hirofumi SUTO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220157335
- Publication date May 19, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi IWASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
EVALUATION METHOD OF MAGNETIC HEAD AND EVALUATION DEVICE OF MAGNETI...
- Publication number 20220122632
- Publication date Apr 21, 2022
- Kabushiki Kaisha Toshiba
- Hirofumi SUTO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20220068299
- Publication date Mar 3, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi IWASAKI
- G11 - INFORMATION STORAGE

Tazumi Nagasawa

Person

Patents Grantslast 30 patents

Magnetic head with conductive non-magnetic layer contact configurat...

Magnetic sensor, magnetic head, and magnetic recording device

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device

Magnetic head including multiple magnetic layers and magnetic recor...

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device including a stacked bod...

Magnetic recording device

Magnetic head and magnetic recording device

Magnetic recording device and magnetic recording method utilizing a...

Magnetic head and magnetic recording device

Magnetic recording device including a magnetic head including a sta...

Evaluation method of magnetic head and evaluation device of magneti...

Magnetic head and magnetic recording device having magnetic layers...

Magnetic head and magnetic recording device including a stacked bod...

Magnetic head and magnetic recording device with stacked body mater...

Magnetic head with stacked body having non-magnetic layers and diff...

Magnetic head and magnetic recording device

Magnetic head including stacked body with changing electrical resis...

Magnetic head for high density magnetic recording device

Magnetic head including stacked body having plural of intermediate...

Magnetic head and magnetic recording device having magnetic layers...

Magnetic head including plural magnetic layers and plural intermedi...

Magnetic head having specific distance between magnetic pole, stack...

Method for evaluating magnetic head and evaluation apparatus of mag...

Magnetic head

Magnetic recording device

Patents Applicationslast 30 patents

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD WITH MULTIPLE LAYERS AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD WITH MULTILAYER CONFIGURATION BETWEEN MAGNETIC POLES...

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE

MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC SENSOR, MAGNETIC HEAD, AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC RECORDING DEVICE AND MAGNETIC RECORDING METHOD

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

EVALUATION METHOD OF MAGNETIC HEAD AND EVALUATION DEVICE OF MAGNETI...

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE