Takuya Okuda

Title: Takuya Okuda: Optical Pickup Device Inventor

Introduction

Takuya Okuda is an inventor associated with Kyoto, Japan. His patent work includes optical pickup devices designed to divide laser light into multiple beams for reading information from optical recording media. His listed portfolio includes 7 patents.

Latest Patents

Okuda’s latest listed patents describe two optical pickup device designs that use diffraction gratings with carefully arranged regions and phase differences.

One design divides the grating into three regions, with the second region further split into two sub-blocks. The sub-blocks have an approximately 180-degree phase difference, while the first region has an approximately 90-degree phase difference from one sub-block and an approximately 180-degree difference from the third region.

The other design divides the grating into three regions and splits the second region into four sub-blocks. Diagonally opposite sub-blocks share the same phase, while adjacent sub-blocks differ by approximately 180 degrees. The first region has an approximately 90-degree phase difference from each sub-block in the second region and an approximately 180-degree difference from the third region.

Both inventions concern separating light emitted by a semiconductor laser into at least three beams, supporting optical pickup operation with distinct grating configurations.

Career Highlights

Okuda’s listed company affiliations include Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His patent work reflects a focus on optical pickup technology and diffraction-grating arrangements.

Collaborations

His listed coworkers include Masahiko Nishimoto and Naoki Nakanishi, indicating connections with other contributors in the optical technology field.

Conclusion

Takuya Okuda’s patent portfolio highlights optical pickup devices that use precisely structured diffraction gratings and phase relationships to separate light beams for optical recording applications.