Nishinomiya, Japan

Kenjin Masumoto

This inventor holds 17 USPTO granted patents and 3 published patent applications and 2 EPO patents, primarily in Battery Technology. Top assignees: Matsushita Electric Industrial Co., Ltd., Tesla, Inc., Panasonic Corporation. Active years: 1999-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenjin Masumoto. Retrieved from https://idiyas.com/inventor/kenjin-masumoto

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

Calculating rank
USPTO Granted Patents = 17 

% Patents Active = 70.6

 

Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 179(Granted Patents)


Location History:

  • Kishiwada, JP (1999 - 2001)
  • Hyougo, JP (2001)
  • Osaka, JP (2009)
  • Nishinomiya, JP (2001 - 2017)
  • Hyogo, JP (2010 - 2020)
  • Santa Clara, CA (US) (2020)
  • Nishinomiya Hyogo, JP (2022)
  • Hogyo, JP (2024)

Company Filing History:


Years Active: 1999-2024

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Areas of Expertise:
Battery Cell
Electrochemical Cell
Welded Battery Cap
Gasket
Manufacturing Method
Battery Pack
Sealed Battery
Secondary Battery
Closure Assembly
Explosion-Proof
Thin Type Battery
Resin Integrated Substrate
17 patents (USPTO):Explore Patents

Title: Kenjin Masumoto: Innovator in Battery Technology

Introduction

Kenjin Masumoto is a prominent inventor based in Nishinomiya, Japan. He has made significant contributions to the field of battery technology, holding a total of 17 patents. His innovative approaches have paved the way for advancements in energy storage solutions.

Latest Patents

One of Masumoto's latest patents is for a battery cell featuring a welded battery cap. This invention outlines a method for constructing a battery that includes a can, a jelly roll contained within the can, a top insulator positioned above the jelly roll, and a battery cap. The method involves forming the can, jelly roll, and top insulator, followed by assembling the battery cap, which includes an outer conductive ring, an insulator ring, a conductive top plate, and a conductive rupture plate. The battery cap is then welded to the inner surface of the can. Another patent describes a battery that incorporates similar components, emphasizing the importance of the welded battery cap for enhanced performance and reliability.

Career Highlights

Throughout his career, Kenjin Masumoto has worked with notable companies, including Matsushita Electric Industrial Co., Ltd. and Tesla, Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking projects in the battery technology sector.

Collaborations

Masumoto has collaborated with esteemed colleagues such as Kunio Tsuruta and Seiichi Mizutani. These partnerships have fostered a creative environment that has led to innovative solutions in battery design and functionality.

Conclusion

Kenjin Masumoto's work in battery technology exemplifies the spirit of innovation. His patents and collaborations reflect a commitment to advancing energy storage solutions, making a lasting impact in the field.

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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