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For the Inventor, By the Inventor

Toride, Japan

Hiroshi Maruyama

This inventor holds 8 USPTO granted patents. Top assignees: Hitachi Maxell, Limited, Hitachi Maxwell, Ltd.. Active years: 1987-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Maruyama. Retrieved from https://idiyas.com/inventor/hiroshi-maruyama-hiwilvgl

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 7

Forward Citations = 134(Granted Patents)


Location History:

  • Yuki, JP (1987)
  • Ibaragi, JP (1988)
  • Toride, JP (1987 - 1990)
  • Ibaraki-ken, JP (1999)
  • Osaka, JP (2004)

Company Filing History:

goldMedal6 out of 1,112 
 
Hitachi Maxell, Limited
 patents
silverMedal2 out of 56 
 
Hitachi Maxwell, Ltd.
 patents

Years Active: 1987-2004

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8 patents (USPTO):Explore Patents
1. D494924 - Battery (2004-08-25),
2. 5912092 - Battery package (1999-06-15),
3. 4918559 - Shutter assembly for a disk cartridge (1990-04-17),
4. 4831478 - Disc drive assembly for supporting a recording disc (1989-05-16),
5. D298251 - Disk cartridge (1988-10-25),
6. 4743994 - Arrangement for positioning a recording disc of a disc cartridge (1988-05-10),
7. 4714973 - Shutter assembly for use in a disc cartridge (1987-12-22),
8. 4695910 - Recording disc cartridge having an improved hub assembly (1987-09-22),

Title: Hiroshi Maruyama: Innovator in Battery Technology

Introduction

Hiroshi Maruyama is a prominent inventor based in Toride, Japan. He has made significant contributions to the field of battery technology, holding a total of eight patents. His innovative designs and solutions have paved the way for advancements in energy storage systems.

Latest Patents

One of Maruyama's latest patents is a battery package that includes a battery with at least one flat mount face. This design features an electric circuit device that controls the discharging and charging of the battery. Additionally, a generally plate-like protective member is mounted on the battery to cover the electric circuit device. The electric circuit device consists of multiple circuit component parts, which are securely mounted on the flat mount face. The protective member includes an oblong plate and side flanges that define a cavity, accommodating the electric component parts when assembled.

Career Highlights

Throughout his career, Hiroshi Maruyama has worked with notable companies such as Hitachi Maxell, Limited and Hitachi Maxwell, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in battery technology.

Collaborations

Maruyama has collaborated with esteemed colleagues, including Yoshitake Kato and Minoru Fujita. These partnerships have fostered a creative environment that has led to the development of advanced battery solutions.

Conclusion

Hiroshi Maruyama's work in battery technology exemplifies his dedication to innovation and excellence. His patents and collaborations reflect his commitment to advancing energy storage solutions.

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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