Company Filing History:

10 out of 2,648

Pioneer Corporation

patents

3 out of 2,861

Pioneer Electronic Corporation

where one patent can have more than one assignee

Years Active: 1999-2011

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8004951 - Pickup device (2011-08-23),

2. 7852736 - Optical element having aberration correction and optical pickup and optical information recording and/or reproducing apparatus equipped therewith (2010-12-14),

3. 7468942 - Optical pickup, optical element, and information reproducing apparatus configured for use with any of plural types of recording media (2008-12-23),

4. 7463571 - Optical element, optical pickup, and optical information recording/reproducing apparatus (2008-12-09),

5. 7227704 - Diffractive optical element, objective lens module, optical pickup, and optical information recording and reproducing apparatus (2007-06-05),

6. 6667947 - Optical multi-layer information recordating medium (2003-12-23),

7. 6641887 - Optical recording medium (2003-11-04),

8. 6625103 - Aspherical objective lens for reading information from optical disks of different thickness and manufacturing method therefor (2003-09-23),

9. 6594091 - Optical pickup (2003-07-15),

10. 6529339 - Lens and production method therefor (2003-03-04),

11. 6134055 - Objective lens and optical pickup device (2000-10-17),

12. 6124988 - Objective lens (2000-09-26),

13. 5867315 - Crystal optic lens and an optical system for an optical pickup device (1999-02-02),

Title: Katsuhiro Koike: Innovator in Optical Technology

Introduction

Katsuhiro Koike is a prominent inventor based in Tsurugashima, Japan. He has made significant contributions to the field of optical technology, holding a total of 13 patents. His work primarily focuses on the development of advanced optical devices and systems.

Latest Patents

One of Koike's latest patents is a pickup device designed for optical recording media. This device features an irradiation optical system that includes an object lens for focusing light on a track of a recording surface. The system is capable of detecting returning light reflected from the focused spot, utilizing a photo detector with multiple light receiving parts for photoelectric conversion. Additionally, the pickup device incorporates an astigmatic device to enhance the quality of the returning light and a division device that divides the light into partial fluxes to prevent interference. Another notable patent involves an optical element that includes holograms for correcting spherical and color aberrations, ensuring optimal performance for various laser lights.

Career Highlights

Throughout his career, Katsuhiro Koike has worked with notable companies such as Pioneer Corporation and Pioneer Electronic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in optical technology.

Collaborations

Koike has collaborated with talented individuals in the field, including Takanori Maeda and Ikuya Kikuchi. These partnerships have fostered a creative environment that has led to the development of advanced optical solutions.

Conclusion

Katsuhiro Koike's contributions to optical technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in optical devices and systems.

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