Nobutake Imamura

This inventor holds 13 USPTO granted patents. Top assignees: Kokusai Denshin Denwa Kabushiki Kaisha, Kokusai Denshin Denwa Co., Ltd.. Active years: 1978-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobutake Imamura. Retrieved from https://idiyas.com/inventor/nobutake-imamura

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 9

Forward Citations = 186(Granted Patents)

Location History:

Meguro, JP (1979)
Tokyo, JP (1978 - 1986)
Kamakura, JP (1986 - 1989)

Company Filing History:

10 out of 339

Kokusai Denshin Denwa Kabushiki Kaisha

patents

3 out of 226

Kokusai Denshin Denwa Co., Ltd.

patents

Years Active: 1978-1989

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4814238 - Magneto-optical recording medium (1989-03-21),

2. 4701881 - Magneto-optical recording medium (1987-10-20),

3. 4631617 - Magneto-optical recording medium (1986-12-23),

4. 4628485 - Magneto-optical recording medium (1986-12-09),

5. 4612068 - Magneto-optical recording medium (1986-09-16),

6. 4559573 - Magneto-optical recording medium (1985-12-17),

7. 4477852 - Magneto-optical recording and reproducing system (1984-10-16),

8. 4417290 - Multi-layer magneto-optical recording medium (1983-11-22),

9. 4412264 - Magneto-optic recording medium (1983-10-25),

10. 4202022 - Magnetic transfer record film and apparatus for magneto-optically (1980-05-06),

11. 4179719 - Thin film magnetic head (1979-12-18),

12. 4152486 - Magneto-optical memory medium (1979-05-01),

13. 4126494 - Magnetic transfer record film (1978-11-21),

Title: Nobutake Imamura: Innovator in Magneto-Optical Technologies

Introduction

Nobutake Imamura is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magneto-optical recording mediums. With a total of 13 patents to his name, Imamura's work has advanced the technology used in data storage and retrieval.

Latest Patents

Imamura's latest patents include innovative designs for magneto-optical recording mediums. One of his notable inventions involves a magneto-optical recording medium that comprises a thin film made of an amorphous alloy. This medium features an easy axis of magnetization that is perpendicular to the film surface, with specific atomic ratios that enhance its performance. Another patent describes a magneto-optical recording medium where a magnetic thin film recording layer is formed using materials with low Curie temperatures. This design allows for improved magneto-optical rotation angles, which are crucial for effective data storage.

Career Highlights

Throughout his career, Nobutake Imamura has worked with notable companies such as Kokusai Denshin Denwa Kabushiki Kaisha and Kokusai Denshin Denwa Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative technologies in magneto-optical recording.

Collaborations

Imamura has collaborated with several talented individuals in his field, including Chuichi Ota and Shinsuke Tanaka. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Nobutake Imamura's contributions to magneto-optical technologies have made a significant impact on the field of data storage. His innovative patents and collaborations highlight his role as a leading inventor in this area.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]