Kainan, Japan

Keiji Hashizume

This inventor holds 2 USPTO granted patents. Top assignee: Noritsu Koki Co., Ltd.. Active years: 1997-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Hashizume. Retrieved from https://idiyas.com/inventor/keiji-hashizume

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 = 1.6

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Kainan, JP (1997)
  • Wakayama, JP (1998)

Company Filing History:


Years Active: 1997-1998

Loading Chart...
2 patents (USPTO):Explore Patents

Title: Keiji Hashizume: Innovator in Film Processing Technology

Introduction

Keiji Hashizume is a notable inventor based in Kainan, Japan. He has made significant contributions to the field of film processing technology, holding two patents that showcase his innovative spirit and technical expertise.

Latest Patents

Hashizume's latest patents include a film processor and a method of processing photographic film. This invention involves a system where multiple films contained within cartridges are successively spliced together and transferred to a development processing station. The process begins with the leading end of a first film being drawn out from its cartridge and transferred to a splicer. At the splicer, a film leader is spliced to the leading end of the first film. This spliced film is then sent to the development processing station, where the trailing end of the first film arrives at the splicer. Subsequently, the leading end of a second film is spliced to the trailing end of the first film, creating a continuous string of films for processing.

Another patent focuses on a film transporting apparatus designed for a film processing system. This apparatus features a pair of frame members that are pivotably connected, allowing them to open and close. Each frame member is equipped with a transport mechanism that moves the film along a designated transport passage when closed. An optical sensor detects film information, and positioning engaging portions ensure proper alignment during operation. This innovative design enhances the efficiency and reliability of film processing.

Career Highlights

Hashizume is associated with Noritsu Koki Co., Ltd., a company known for its advancements in imaging technology. His work has significantly impacted the film processing industry, contributing to more efficient and effective methods of handling photographic films.

Collaborations

Throughout his career, Hashizume has collaborated with talented individuals such as Junichi Owaki and Yasuhito Tauchi. These collaborations have fostered innovation and have led to the development of cutting-edge technologies in film processing.

Conclusion

Keiji Hashizume's contributions to film processing technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the industry, paving the way for advancements in photographic film processing.

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…