Yasuo Tamai

This inventor holds 77 USPTO granted patents, primarily in Magnetic Recording Media (CPC class 4284). Top assignees: Fuji Photo Film Company, Limited, Rank Xerox Ltd., Mitsubishi Gas Chemical Company, Inc.. Active years: 1976-1990.

USPTO Granted Patents = 77

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 15

Forward Citations = 747(Granted Patents)

Forward Citations (Not Self Cited) = 723(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tokyo, JA (1976 - 1977)
Asaka, JA (1976 - 1977)
Odawara, JA (1976 - 1978)
Odawara, JP (1978 - 1989)
Kanagawa, JP (1983 - 1990)

Company Filing History:

72 out of 16,458

Fuji Photo Film Company, Limited

Mitsubishi Gas Chemical Company, Inc.

where one patent can have more than one assignee

Years Active: 1976-1990

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Areas of Expertise:

Magnetic Recording Medium

Magnetic Coating

Magnetic Tape

Leader Tape

Copolymers

Preparation Methods

Production Processes

Magnetic Elements

Binder Composition

Recording Composition

Coating Compositions

77 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4965125 - Magnetic recording medium and the method for preparing the same (1990-10-23),

2. 4963433 - Magnetic recording medium (1990-10-16),

3. 4952064 - Method for preparing magnetic coating compositions (1990-08-28),

4. 4857388 - Magnetic recording medium (1989-08-15),

5. 4847147 - Magnetic recording medium (1989-07-11),

6. 4820581 - Magnetic recording medium (1989-04-11),

7. 4803120 - Magnetic tape having a leader tape (1989-02-07),

8. 4781964 - Magnetic recording medium (1988-11-01),

9. 4780353 - Magnetic recording medium (1988-10-25),

10. 4743487 - Magnetic recording medium (1988-05-10),

11. 4728563 - Magnetic recording medium (1988-03-01),

12. 4728558 - Magnetic recording medium (1988-03-01),

13. 4724162 - Process for producing magnetic recording medium (1988-02-09),

14. 4722862 - Magnetic recording medium (1988-02-02),

15. 4710421 - Magnetic recording medium (1987-12-01),

Title: Yasuo Tamai - Pioneering Innovation in Magnetic Recording Technology

Introduction: Yasuo Tamai, a distinguished inventor hailing from Odawara, Japan, has left an indelible mark on the field of technology with his groundbreaking inventions and a remarkable portfolio of 77 patents.

Latest Patents: Among his latest patents is the innovative "Magnetic recording medium and the method for preparing the same," revolutionizing data storage with a magnetic layer designed for optimal performance. Another key patent is the "Magnetic recording medium," featuring a unique structure enhancing data storage capabilities.

Career Highlights: Yasuo Tamai has contributed significantly to the industry through his tenure at esteemed companies like Fuji Photo Film Company, Limited, and Rank Xerox Ltd.. His expertise and innovative spirit have propelled advancements in magnetic recording technology, earning him recognition as a trailblazer in the field.

Collaborations: Throughout his career, Yasuo Tamai has collaborated with talented individuals such as Hiroshi Ogawa and Masashi Aonuma, fostering a culture of creativity and teamwork to drive meaningful innovation in the technology sector.

Conclusion: Yasuo Tamai stands as a beacon of innovation, inspiring future generations of inventors to think boldly and push the limits of what is possible in the world of technology. His contributions have reshaped the landscape of magnetic recording technology, leaving a lasting legacy that continues to inspire and drive progress in the industry.