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For the Inventor, By the Inventor

Kanagawa, Japan

Norikazu Tsumita

USPTO Granted Patents = 17

Average Co-Inventor Count = 7.7

ph-index = 11

Forward Citations = 331(Granted Patents)


Location History:

  • Kodaira, JP (1981 - 1983)
  • Higashiyamato, JP (1988)
  • Hiratsuka, JP (1994)
  • Kanagawa-ken, JP (1997 - 2002)
  • Kanagawa, JP (1988 - 2003)

Company Filing History:

goldMedal17 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 1,112 
 
Hitachi Maxell, Limited
 patents
where one patent can have more than one assignee

Years Active: 1981-2003

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17 patents (USPTO):Explore Patents
1. 6627253 - Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus (2003-09-30),
2. 6335103 - Magnetic recording media for longitudinal recording (2002-01-01),
3. 5665478 - Magnetic recording media for longitudinal recording (1997-09-09),
4. 5285343 - Magnetic disk with surface protective layer having convex portions and (1994-02-08),
5. 5236791 - Magnetic recording medium and magnetic storage (1993-08-17),
6. 5147732 - Longitudinal magnetic recording media and magnetic memory units (1992-09-15),
7. 5143794 - Magnetic recording media for longitudinal recording, process for (1992-09-01),
8. 4950548 - Magnetic recording medium and method of producing same (1990-08-21),
9. 4939045 - Magnetic recording medium (1990-07-03),
10. 4883711 - Magnetic recording medium (1989-11-28),
11. 4833020 - Magnetic recording medium (1989-05-23),
12. 4786553 - Magnetic recording medium (1988-11-22),
13. 4743491 - Perpendicular magnetic recording medium and fabrication method therefor (1988-05-10),
14. 4415262 - Photomask (1983-11-15),
15. 4404233 - Ion implanting method (1983-09-13),

Sure, here is the article about inventor Norikazu Tsumita:

Title: Norikazu Tsumita: Innovating Magnetic Recording Technologies

Introduction: Norikazu Tsumita, a prolific inventor based in Kanagawa, Japan, has made significant contributions to the field of magnetic recording technologies with a total of 17 patents under his name.

Latest Patents: Among his latest patents is the development of a magnetic recording media for longitudinal recording. This innovation offers a magnetic layer with specific characteristics that provide low media noise, a high signal-to-noise ratio, and superior reliability in terms of corrosion resistance.

Career Highlights: Norikazu Tsumita has had a successful career working with renowned companies such as Hitachi, Ltd. and Hitachi Maxell, Limited. Through his work, he has showcased a deep understanding of materials science and magnetic properties, leading to groundbreaking advancements in the magnetic storage industry.

Collaborations: Throughout his career, Norikazu Tsumita has collaborated with notable individuals in the field, including coworkers like Yoshihiro Shiroishi and Sadao Hishiyama. These collaborations have resulted in the development of cutting-edge technologies and innovative solutions that have pushed the boundaries of magnetic recording capabilities.

Conclusion: Norikazu Tsumita's expertise and dedication to innovation have positioned him as a leading figure in the magnetic recording industry. His contributions have not only advanced the field but have also paved the way for future technological advancements in data storage and memory technologies.

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