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Tetsuya Roppongi

USPTO Granted Patents = 76

Average Co-Inventor Count = 4.1

ph-index = 15

Forward Citations = 843(Granted Patents)

Forward Citations (Not Self Cited) = 782(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kawasaki, JP (2000 - 2004)
Chuo-ku, JP (2005 - 2009)
Tokyo, JP (2004 - 2020)
Milpitas, CA (US) (2020 - 2022)
San Jose, CA (US) (2019 - 2023)

Company Filing History:

62 out of 7,968

Tdk Corporation

11 out of 1,214

Headway Technologies, Incorporated

Sae Magnetics (h.k.) Limited

Tdk Corpoartion

5. 2 out of 832,843

Other

patents

where one patent can have more than one assignee

Years Active: 2000-2023

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Areas of Expertise:

Spin Torque Oscillator

Magnetic Recording Head

Thermal Assisted Magnetic Recording

Microwave Assisted Magnetic Head

Magnetoresistance Effect Device

Plasmon Generator

Magnetic Flux Guiding Device

Head Gimbal Assembly

Magnetic Sensor

Thin Film Magnetic Head

Magnetic Recording Apparatus

Heat Assisted Magnetic Write Head

76 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11568891 - Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application (2023-01-31),

2. 11514931 - Magnetic head including main pole having top surface including first inclined portion, second inclined portion, and third inclined portion, and spin torque oscillator (2022-11-29),

3. 11289117 - Magnetic head including spin torque oscillator (2022-03-29),

4. 11211082 - Magnetic head including spin torque oscillator (2021-12-28),

5. 10937450 - Magnetic flux guiding device with spin torque oscillator (STO) film having one or more negative spin polarization layers in assisted writing application (2021-03-02),

6. 10839829 - Magnetic head with a main pole including first and second layers and manufacturing method for the same (2020-11-17),

7. 10803888 - Magnetic head including spin torque oscillator and manufacturing method for the same (2020-10-13),

8. 10748559 - Magnetic head including spin torque oscillator and manufacturing method for the same (2020-08-18),

9. 10559412 - Magnetoresistance effect device (2020-02-11),

10. 10522174 - Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application (2019-12-31),

11. 10490216 - Magnetic flux guiding device with antiferromagnetically coupled (AFC) oscillator in assisted writing application (2019-11-26),

12. 10424326 - Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application (2019-09-24),

13. 10121497 - Magnetic recording head with spin torque oscillator layers satisfying width, thickness and angle relationship formulas (2018-11-06),

14. 10109302 - Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus (2018-10-23),

15. 10032470 - Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus (2018-07-24),

Title: Tetsuya Roppongi: Pioneering Inventor from Tokyo

Introduction: Tetsuya Roppongi is a renowned inventor hailing from the vibrant city of Tokyo, Japan. With a passion for innovation and a keen eye for detail, he has made significant contributions to various fields through his groundbreaking inventions.

Latest Patents: Tetsuya Roppongi holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions. His most recent patents focus on enhancing efficiency in manufacturing processes and improving renewable energy technologies.

Career Highlights: Throughout his illustrious career, Tetsuya Roppongi has worked with leading tech companies and research institutions to bring his inventions to life. His innovative spirit and dedication to pushing the boundaries of technology have earned him recognition as a trailblazer in the industry.

Collaborations: Tetsuya Roppongi has collaborated with top engineers, scientists, and designers from around the world to develop cutting-edge solutions to complex challenges. His collaborative efforts have resulted in the creation of revolutionary products that have had a lasting impact on society.

Conclusion: Tetsuya Roppongi's relentless pursuit of innovation and his commitment to excellence continue to inspire the next generation of inventors. His remarkable contributions to the world of technology have solidified his legacy as a true visionary in the field of inventions.

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