logo

For the Inventor, By the Inventor

Osaka, Japan

Shoichi Takasuka

This inventor holds 11 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 2002-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoichi Takasuka. Retrieved from https://idiyas.com/inventor/shoichi-takasuka

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

USPTO Granted Patents = 11

% Patents Active = 54.5

Average Co-Inventor Count = 4.7

ph-index = 4

Forward Citations = 74(Granted Patents)


Company Filing History:

goldMedal11 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents

Years Active: 2002-2006

Loading Chart...
11 patents (USPTO):Explore Patents
1. 7139235 - Optical element with diffraction grating, semiconductor device, and optical information recording device employing the same (2006-11-21),
2. 7064898 - Optoelectronic device (2006-06-20),
3. 7035196 - Optical head device and optical recording and reproducing apparatus having lasers aligned in a tangential direction (2006-04-25),
4. 6947213 - Diffractive optical element that polarizes light and an optical pickup using the same (2005-09-20),
5. 6747939 - Semiconductor laser device and optical pickup device using the same (2004-06-08),
6. 6735024 - Optical pickup with improved optical properties (2004-05-11),
7. 6728035 - Optical device with diffraction grating having plural grating regions (2004-04-27),
8. 6728034 - Diffractive optical element that polarizes light and an optical pickup using the same (2004-04-27),
9. 6597642 - Photodetector unit, and optical pickup, optical reproduction apparatus, and optical recording apparatus equipped with the same (2003-07-22),
10. 6501601 - Optical device with diffraction grating having plural grating regions (2002-12-31),
11. 6473248 - Method for manufacturing an optical pickup (2002-10-29),

Title: The Innovative Contributions of Shoichi Takasuka

Introduction

Shoichi Takasuka is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of optoelectronics, holding a total of 11 patents. His work focuses on developing advanced optical devices that enhance the performance of information recording systems.

Latest Patents

Takasuka's latest patents include an optical element with a diffraction grating, a semiconductor device, and an optical information recording device employing these technologies. The optical semiconductor device features an emitted beam branching section that effectively manages light beams from a laser device. It also includes a reflected light beam branching section that separates reflected light beams from an information recording medium into distinct focused states. Additionally, the device incorporates servo signal sensing photodetectors that receive branched reflected light beams in a defocused state.

Another notable invention is an optoelectronic device designed to provide excellent reproduction signals and stable servo control while minimizing the deterioration of the signal-to-noise ratio caused by stray light. This device utilizes a semiconductor laser to emit light beams onto an information-recording medium, along with a hologram optical element that contains a diffraction grating region. The photodetector in this device captures light diffracted at the grating region, ensuring high-quality signal reception.

Career Highlights

Shoichi Takasuka is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of optoelectronics. His work has significantly impacted the development of optical devices used in various applications, particularly in data storage and retrieval technologies.

Collaborations

Throughout his career, Takasuka has collaborated with notable colleagues, including Hideyuki Nakanishi and Shinichi Ijima. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their respective fields.

Conclusion

Shoichi Takasuka's contributions to optoelectronics and his impressive portfolio of patents highlight his role as a leading inventor in the industry. His innovative work continues to influence the development of advanced optical technologies, paving the way for future advancements.

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]
Loading…