Masayoshi Nakagawa

This inventor holds 15 USPTO granted patents and 1 published patent application. Top assignees: Alps Electric Co., Ltd., Tdk Corporation. Active years: 1999-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayoshi Nakagawa. Retrieved from https://idiyas.com/inventor/masayoshi-nakagawa

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

USPTO Granted Patents = 15 (Patent Applications = 1)

% Patents Active = 93.3

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 131(Granted Patents)

Location History:

Iwaki, JP (1999)
Fukushima-ken, JP (1999 - 2002)
Tokyo, JP (2009)
Niigata-ken, JP (2001 - 2011)

Company Filing History:

13 out of 4,048

Alps Electric Co., Ltd.

Years Active: 1999-2011

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D630666 - Lens for light communication (2011-01-11),

2. 7499246 - Magnetic head device (2009-03-03),

3. 7423846 - Magnetic-head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the same (2008-09-09),

4. 7167344 - Magnetic head actuator having finely movable tracking device (2007-01-23),

5. 6987649 - Magnetic head apparatus with microactuator having function of short-circuiting both electrodes of epiezoelectric elements and method of manufacturing the same (2006-01-17),

6. 6971155 - Method of manufacturing a magnetic head (2005-12-06),

7. 6791783 - Magnetic head device with microactuator fine motion device having electrode section molded out of resin (2004-09-14),

8. 6707645 - Microactuator-mounted magnetic head device with control conductive pattern (2004-03-16),

9. 6577464 - Magnetic recording device having first actuator for coarse adjustment and second actuator for fine adjustment (2003-06-10),

10. 6469852 - Disk on which servo pattern is recorded and arithmetic processing method for servo pattern read from the disk (2002-10-22),

11. 6317295 - Adjustment apparatus for magnetic head device (2001-11-13),

12. 6218750 - Driving device for polyphase motor (2001-04-17),

13. 6154330 - Disk provided with servo patterns and method of recording servo patterns (2000-11-28),

14. 5966259 - Magnetic recording medium formed in a plurality of tracks and magnetic (1999-10-12),

15. 5963391 - Servo information writing system (1999-10-05),

Title: The Innovative Contributions of Masayoshi Nakagawa

Introduction

Masayoshi Nakagawa is a prominent inventor based in Niigata, Japan. He has made significant contributions to the field of technology, particularly in the areas of light communication and magnetic devices. With a total of 15 patents to his name, Nakagawa's work has had a lasting impact on various industries.

Latest Patents

Among his latest patents are several groundbreaking inventions. One notable patent is a lens designed for light communication, which enhances the efficiency of data transmission. Another important invention is a magnetic head device that improves the performance of data storage systems. Additionally, he has developed recessed grooves that feature planar adhesion surfaces and inclined surfaces over the entire thickness of a slider. This innovation allows for a precise angle with respect to the horizontal plane, optimizing the functionality of microactuators.

Career Highlights

Throughout his career, Nakagawa has worked with leading companies in the technology sector. He has been associated with Alps Electric Co., Ltd. and TDK Corporation, where he contributed to various innovative projects. His expertise and dedication have earned him recognition in the field of invention and technology.

Collaborations

Nakagawa has collaborated with several talented individuals, including Makoto Moriya and Koji Nagao. These partnerships have fostered a creative environment that has led to the development of numerous innovative solutions.

Conclusion

Masayoshi Nakagawa's contributions to technology through his patents and collaborations highlight his role as a key inventor in the industry. His work continues to influence advancements in light communication and magnetic devices, showcasing the importance of innovation in today's world.

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]

1 patent pending: