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For the Inventor, By the Inventor

Yokohama, Japan

Souichirou Yamada

This inventor holds 6 USPTO granted patents. Top assignee: Hitachi Media Electronics Co., Ltd.. Active years: 2010-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Souichirou Yamada. Retrieved from https://idiyas.com/inventor/souichirou-yamada

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

USPTO Granted Patents = 6

Average Co-Inventor Count = 3.8

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:

goldMedal6 out of 203 
 
Hitachi Media Electronics Co., Ltd.
 patents

Years Active: 2010-2014

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6 patents (USPTO):Explore Patents
1. 8873173 - Object lens drive unit and optical pickup using the same (2014-10-28),
2. 8588038 - Optical pickup (2013-11-19),
3. 8422343 - Optical pickup (2013-04-16),
4. 8213275 - Object lens actuator and disc drive using the same (2012-07-03),
5. 7933174 - Optical pickup with support part having hole for being inserted with a projection part of a case (2011-04-26),
6. 7859774 - Objective lens actuator and a disc apparatus using the same therein (2010-12-28),

Title: Souichirou Yamada: A Pioneer in Optical Technologies

Souichirou Yamada, an innovative inventor based in Yokohama, Japan, has made significant contributions to the field of optical technology. With a total of six patents to his name, Yamada stands out as a prominent figure in his industry.

Latest Patents

Among Yamada's latest inventions are two noteworthy patents: the Object Lens Drive Unit and the Optical Pickup. The Object Lens Drive Unit features a lens holder with an attached object lens, multiple driving coils, and connection substrates for operational support. This design arranges wire connection electrodes and coil connection electrodes symmetrically along the optic axis, enhancing the efficiency of optical systems.

The Optical Pickup encompasses a range of components, including a laser light source, beam splitter, and photo detector, all housed within a protective case. One of the critical innovations included in the device is its objective lens actuator, which integrates a magnetic member and magnet. Yamada's design is particularly mindful of potential contamination during the adhesion step, ensuring improved performance and reliability of the optical pickup.

Career Highlights

Yamada is currently employed at Hitachi Media Electronics Co., Ltd., where his innovative work continues to influence the development of optical technologies. Over the years, he has earned recognition for his inventive approach and technical expertise, contributing to the advancements in optical drive systems and related fields.

Collaborations

Throughout his career, Yamada has collaborated with several talented professionals, including coworkers Katsuhiko Kimura and Tetsuo Itou. These partnerships have fostered a collaborative environment that has further propelled their shared goals in advancing optical technology.

Conclusion

In conclusion, Souichirou Yamada's inventive spirit and dedication to innovation have enabled him to create groundbreaking optical technologies. With multiple patents to his name, his contributions continue to resonate within the industry, reflecting a relentless pursuit of excellence and improvement in optical systems.

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]
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