Kofu, Japan

Kenji Masuyama

This inventor holds 10 USPTO granted patents. Top assignees: Nippon Seimitsu Kogyo Kabushiki Kaisha, Nisca Corporation, Toska Co., Ltd.. Active years: 1990-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Masuyama. Retrieved from https://idiyas.com/inventor/kenji-masuyama

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


% Patents Active = 70.0

Average Co-Inventor Count = 2.3

ph-index = 6

Forward Citations = 96(Granted Patents)


Location History:

  • Koufu, JP (2003)
  • Kofu, JP (1990 - 2015)

Company Filing History:


Years Active: 1990-2015

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10 patents (USPTO):Explore Patents

Title: The Innovative Mind of Kenji Masuyama: A Journey Through Inventions

Introduction: Kenji Masuyama, an inventive spirit from Kofu, Japan, has made significant contributions to the field of optics and image processing with his impressive portfolio of ten patents. His work exemplifies the dedication and creativity of inventors striving to push the boundaries of technology.

Latest Patents: Among Masuyama's recent innovations are two notable patents: the "Light Quantity Adjustment Apparatus" and the "Image Pickup Apparatus." The former features a system where diaphragm blades, supported by substrates and a guide plate, efficiently open and close to control light passage. This device incorporates a driving mechanism that enhances precision and reduces mechanical vibrations. The latter, a light quantity adjusting device, also demonstrates advanced engineering, using an electromagnetic driving device to regulate light flow while minimizing disruptive movements.

Career Highlights: Kenji Masuyama has honed his expertise while working with esteemed organizations such as Nippon Seimitsu Kogyo (Nippon Seimitsu Kogyo Kabushiki Kaisha) and Nisca Corporation. These companies provided him with the platform to develop his inventive skills further, enhancing his contributions to advanced optical technologies.

Collaborations: Throughout his career, Masuyama has collaborated with talents like Mineo Kubota and Takahiro Nishimoto. Their joint efforts have likely fostered a rich exchange of ideas, sparking innovation and leading to new advancements in their fields.

Conclusion: Kenji Masuyama's journey in the realm of inventions showcases his brilliance and the profound impact of his work on optical technologies. As he continues to innovate, his patents serve as a testament to his creative vision and the collaborative spirit of engineering. The advancements he contributes to will undoubtedly inspire future inventors and shape the industry for years to come.

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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