Osaka, Japan

Masahiro Sako

This inventor holds 25 USPTO granted patents, primarily in Document Feeding Technology. Top assignees: Mita Industrial Co., Ltd., Kyocera Mita Corporation. Active years: 1994-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Sako. Retrieved from https://idiyas.com/inventor/masahiro-sako

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 8

Forward Citations = 144(Granted Patents)


Location History:

  • Hirakata, JP (1994)
  • Osaka, JP (1994 - 2000)

Company Filing History:


Years Active: 1994-2000

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Areas of Expertise:
Document Feeder
Automatic Document Feeder
Conveying Mechanism
Separator Mechanism
Recycling Document Feeder
Document Transport Device
Toner Cartridge
Image Forming Apparatus
Management System
Toner Feeding Device
Document Conveying Apparatus
Document Guiding Member
25 patents (USPTO):Explore Patents

Title: A Spotlight on Masahiro Sako: Innovator and Patent Holder

Introduction

Masahiro Sako is a prominent inventor based in Osaka, Japan, known for his impressive portfolio of 25 patents. His innovative contributions primarily focus on document handling technologies, which have had a significant impact on the efficiency of automated systems.

Latest Patents

Among Masahiro Sako's latest inventions is the document separating mechanism for automatic document feeders. This mechanism is designed to separate and feed the bottommost document from a stack laid on the document-bearing means. It incorporates a sophisticated separating roller mechanism with multiple rollers and a separating belt mechanism that works in concert to ensure smooth document handling.

Another notable patent of his is the automatic document conveyer, which consists of a moving frame that is turnably mounted on a machine housing. This conveyer is equipped with a conveyor belt mechanism that supports document movement, featuring a uniquely designed support frame that ensures the proper positioning of documents as the frame is turned.

Career Highlights

Throughout his career, Masahiro Sako has contributed his expertise to reputable companies, including Mita Industrial Co., Ltd. and Kyocera Mita Corporation. His work has not only enhanced the operational efficiency of document handling processes but has also positioned him as a leading figure in innovation within the industry.

Collaborations

Sako’s work has often involved collaboration with talented individuals such as Hiroyuki Harada and Toru Tanjo. Their combined efforts have led to the development of advanced technologies that continue to shape the future of document automation.

Conclusion

Masahiro Sako's contributions to the field of inventing through his numerous patents demonstrate his unwavering commitment to innovation. With his continued work, he remains a vital player in the advancement of document handling technologies, influencing both industry practices and user experiences worldwide.

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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