Nagano, Japan

Masaru Hoshino

This inventor holds 26 USPTO granted patents, primarily in Image Processing Technology. Top assignee: Seiko Epson Corporation. Active years: 1993-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Hoshino. Retrieved from https://idiyas.com/inventor/masaru-hoshino

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


% Patents Active = 61.5

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 238(Granted Patents)


Location History:

  • Nagano-ken, JP (2005 - 2010)
  • Suwa-shi, JP (2011)
  • Suwa, JP (2003 - 2013)
  • Nagano, JP (1993 - 2014)
  • Fujimi-machi, JP (2013 - 2015)

Company Filing History:


Years Active: 1993-2015

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Areas of Expertise:
Image Processing
Color Correction
Image Retouching
Liquid Discharging
Ink-Jet Recording
Photographic Printing
User Interface
Input/Output Devices
Control Methods
Computer Readable Medium
Adhesive Application
26 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masaru Hoshino

Introduction: Masaru Hoshino, a notable inventor based in Nagano-ken, Japan, has made significant strides in the field of technology and engineering. With an impressive portfolio of 26 patents, Hoshino has contributed to advancements in various applications, including liquid discharging apparatuses and photo retouching software.

Latest Patents: Among his latest patents, the "Liquid Discharging Apparatus" stands out. This innovative device features a head that discharges liquid onto a medium, a transportation section to move the medium, a creasing section for enhancing its properties, and a clamping section that securely holds the medium during operation. Hoshino’s proficiency in software development is also highlighted by his patent for an "Image Retouching Program." This user-friendly photo retouching software streamlines the workflow for photo studio personnel by converting photo image data into a working color space. It ensures precise color matching through the use of ICC profiles when opening and displaying images on monitors.

Career Highlights: Masaru Hoshino has built an illustrious career at Seiko Epson Corporation, a leading company known for its cutting-edge technology and innovations. His work in the company has not only advanced internal projects but has also significantly impacted the industry as a whole.

Collaborations: Throughout his career, Hoshino has collaborated with eminent colleagues, including Nobuhisa Takabayashi and Atsushi Hatta. Together, they have driven numerous projects forward, translating creative ideas into patented inventions that address practical needs in technology.

Conclusion: Masaru Hoshino’s dedication to innovation and his extensive patent portfolio solidify his position as a key figure in the field of technology. His work at Seiko Epson Corporation continues to inspire future developments in both hardware and software applications, showcasing the importance of collaboration and inventive thinking in engineering 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]
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