Hideo Suenaga

This inventor holds 7 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd.. Active years: 1985-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideo Suenaga. Retrieved from https://idiyas.com/inventor/hideo-suenaga

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

USPTO Granted Patents = 7

% Patents Active = 71.4

Average Co-Inventor Count = 2.9

ph-index = 5

Forward Citations = 77(Granted Patents)

Location History:

Toyokawa, JP (1985 - 1988)
Yokohama, JP (1999 - 2013)

Company Filing History:

Hitachi Media Electronics Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1985-2013

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8537651 - Optical disc device (2013-09-17),

2. 7400568 - Optical device, optical pickup and optical disk apparatus (2008-07-15),

3. 5963517 - Disk reproducing speed control method and a disk reproducing apparatus (1999-10-05),

4. 4779255 - Optical reading/reproducing apparatus (1988-10-18),

5. 4744069 - Optical disc apparatus with access system having object lens control (1988-05-10),

6. 4532619 - Method and apparatus for reducing semiconductor laser optical noise (1985-07-30),

7. 4525823 - Optical tracking system (1985-06-25),

Title: Hideo Suenaga: Innovator in Optical Technology

Introduction

Hideo Suenaga is a prominent inventor based in Toyokawa, Japan. He has made significant contributions to the field of optical technology, holding a total of 7 patents. His work has advanced the development of optical devices and systems, showcasing his expertise and innovative spirit.

Latest Patents

Suenaga's latest patents include an optical disc device that features an optical source for emitting an optical beam. This device incorporates an incident intensity control circuit to manage the intensity of the emitted optical beam. It also includes an objective lens for focusing the beam on an optical disc and an optical detector for receiving the reflected beam. The servo signal generation circuit generates a focus error signal, ensuring that the variation of the focus error signal remains within a predetermined range.

Another notable patent is for an optical device that integrates an optical component and multiple light-emitting elements on a single substrate. The design includes a step on the substrate that differentiates the levels of the optical component and the light-emitting elements. This innovative configuration allows for enhanced functionality and performance in optical applications.

Career Highlights

Throughout his career, Hideo Suenaga has worked with esteemed companies such as Hitachi, Ltd. and Hitachi Media Electronics Co., Ltd. His experience in these organizations has contributed to his development as a leading inventor in the optical technology sector.

Collaborations

Suenaga has collaborated with notable colleagues, including Toshio Sugiyama and Harushige Nakagaki. These partnerships have fostered innovation and have played a crucial role in the advancement of optical technologies.

Conclusion

Hideo Suenaga's contributions to optical technology through his patents and collaborations highlight his status as a significant inventor in the field. His innovative designs continue to influence the development of optical devices and 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]