Saitama, Japan

Hideo Koiwai

This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Kabushiki Kaisha Matsuyama Seisakusho, Fuji Xerox Co., Ltd.. Active years: 1991-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideo Koiwai. Retrieved from https://idiyas.com/inventor/hideo-koiwai

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

USPTO Granted Patents = 7 

% Patents Active = 57.1

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 47(Granted Patents)


Location History:

  • Sakado, JP (1995)
  • Saitam, JP (1996)
  • Saitama, JP (1991 - 2012)
  • Kanagawa, JP (2014)

Company Filing History:


Years Active: 1991-2014

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7 patents (USPTO):Explore Patents

Title: Hideo Koiwai: Innovator in Recording Material Processing

Introduction

Hideo Koiwai is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of recording material processing, holding a total of seven patents. His innovative designs and mechanisms have advanced the technology used in various imaging and recording devices.

Latest Patents

Koiwai's latest patents include a recording material processing apparatus and an opening-and-closing mechanism for image forming apparatuses. The recording material processing apparatus features a main body with a processing unit, a cover member that can be opened and closed, and a drag applying portion that facilitates user interaction. The design allows for efficient handling and processing of recording materials. The opening-and-closing mechanism includes an opening-and-closing member, a holding member, and a braking member made of elastic material, which generates a braking force through friction. This invention enhances the functionality and reliability of image forming devices.

Career Highlights

Throughout his career, Koiwai has worked with prominent companies such as Kabushiki Kaisha Matsuyama Seisakusho and Fuji Xerox Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative solutions in the field of recording technology.

Collaborations

Koiwai has collaborated with notable coworkers, including Manabu Tamiya and Masaharu Tsuruoka. Their combined efforts have led to advancements in the technologies they have worked on together.

Conclusion

Hideo Koiwai's contributions to the field of recording material processing through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively.

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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