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Singapore, Singapore

Hoya Magnetics Singapore Pte. Ltd.

USPTO Granted Patents = 13

Forward Citations = 844

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10 inventors (with patents filed for the assignee):

Masafumi Ishiyama (10 out of 22 patents)

Teiichiro Umezawa (5 out of 30 patents)

Hiroshi Tomiyasu (3 out of 25 patents)

4. Takashi Morikawa (2 out of 6 patents)

5. Hisao Kawai (2 out of 13 patents)

6. Hirotaka Tanaka (2 out of 4 patents)

7. Masaki Uemura (2 out of 3 patents)

8. Koichi Shimokawa (1 out of 18 patents)

9. Kenji Ayama (1 out of 11 patents)

10. Keiji Moroishi (1 out of 3 patents)

13 patents: Sort by Forward Citations

1. 7736768 - Magnetic disk and manufacturing method thereof (2010-06-15),

2. 7722968 - Magnetic disk and manufacturing method thereof (2010-05-25),

3. 7695833 - Solid body surface evaluation method, magnetic disk evaluation method, magnetic disk, and manufacturing method thereof (2010-04-13),

4. 7597973 - Magnetic disk and method of producing the same (2009-10-06),

5. 7537846 - Magnetic disk, method of manufacturing the magnetic disk and method of evaluating the magnetic disk (2009-05-26),

6. 7208236 - Magnetic recording medium with multi-portion carbon-based protection layer, and apparatus thereof (2007-04-24),

7. 7174775 - Solid body surface evaluation method, magnetic disk evaluation method, magnetic disk, and manufacturing method thereof (2007-02-13),

8. 7169487 - Magnetic recording medium (2007-01-30),

9. 7166319 - Magnetic disk and method of producing the same (2007-01-23),

10. 7105241 - Magnetic disk and method of manufacturing same (2006-09-12),

11. 7081308 - Magnetic recording medium (2006-07-25),

12. 6946191 - Magnetic recording medium (2005-09-20),

13. 6916558 - Magnetic disk using a glass substrate (2005-07-12),

Hoya Magnetics Singapore Pte. Ltd. is a leading manufacturer of advanced magnetics and electronic components. With over 30 years of expertise, we specialize in the design, development, and production of high-quality magnetic materials, such as transformers, inductors, and coils. Our products cater to various industries including automotive, telecommunications, consumer electronics, and industrial manufacturing. At Hoya Magnetics Singapore, we are committed to delivering innovative solutions and excellent customer service to meet the evolving needs of our clients worldwide.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

13 Patents

#156 in Singapore

#157 in Singapore

#43,712 in the World

Singapore, Singapore

Hoya Magnetics Singapore Pte. Ltd.

Forward Citations = 844

10 inventors:

Masafumi Ishiyama (10 out of 22 patents)

Teiichiro Umezawa (5 out of 30 patents)

Hiroshi Tomiyasu (3 out of 25 patents)

4. Takashi Morikawa (2 out of 6 patents)

5. Hisao Kawai (2 out of 13 patents)

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