Osaka, Japan

Tadashi Saitoh

This inventor holds 4 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Nippon Telegraph and Telephone Corporation, Sumitomo Electric Industries, Limited. Active years: 2005-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Saitoh. Retrieved from https://idiyas.com/inventor/tadashi-saitoh-10yk3pca

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

Calculating rank
USPTO Granted Patents = 4 

% Patents Active = 75.0

 

Average Co-Inventor Count = 4.6

ph-index = 3

Forward Citations = 259(Granted Patents)


Location History:

  • Hadano, JP (2005)
  • Suita, JP (2009)
  • Osaka, JP (2008 - 2014)

Company Filing History:


Years Active: 2005-2014

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4 patents (USPTO):Explore Patents

Title: Innovations of Tadashi Saitoh: Pioneering Light Receiving Devices

Introduction

Tadashi Saitoh is an innovative inventor based in Osaka, Japan, recognized for his contributions to optical technology. With a notable portfolio of four patents, Saitoh has focused on advancing light receiving devices and optical systems, demonstrating a strong commitment to the field of optical engineering.

Latest Patents

Among his latest patents, Saitoh has developed several groundbreaking technologies. One patent details a light receiving device that includes microlenses situated in regions that correspond to pixels. These microlenses are positioned on the rear surface of an InP substrate, utilizing a resin material with specific transmittance characteristics for optimal performance.

Another significant patent outlines an electrode pad on a conductive semiconductor substrate designed to have reduced capacitance, facilitating improved control of characteristic impedance while maintaining a practical pad size. This invention also features a mesa-stripe type optical waveguide formed by stacking various layers on a substrate, enhancing the effectiveness of optical signal transmission.

Career Highlights

Saitoh's professional journey includes working for prominent companies such as Nippon Telegraph and Telephone Corporation and Sumitomo Electric Industries, Limited. His roles in these organizations have allowed him to contribute to advanced research and development in telecommunications and electrical engineering.

Collaborations

Throughout his career, Saitoh has collaborated with notable colleagues, including Takayuki Yamanaka and Hideki Fukano. These partnerships have enabled him to harness collective expertise, further driving innovation in optical technologies.

Conclusion

Tadashi Saitoh's work exemplifies the spirit of innovation in the realm of optical devices. With his impressive number of patents and significant contributions to the industry, he continues to make strides in enhancing the capabilities of light receiving technologies, positioning himself as a key figure in optical engineering.

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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