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For the Inventor, By the Inventor

Osaka, Japan

Masahito Matsumoto

This inventor holds 64 USPTO granted patents, primarily in Thermoplastic Molding (CPC class 2642). Top assignees: Sumitomo Chemical Company, Limited, Hosokawa Seisakusho Co., Ltd., Nissen Chemitec Corporation. Active years: 1989-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahito Matsumoto. Retrieved from https://idiyas.com/inventor/masahito-matsumoto

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

USPTO Granted Patents = 64

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 14

Forward Citations = 601(Granted Patents)

Forward Citations (Not Self Cited) = 543(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Ibaraki, JP (1989 - 2002)
  • Osaka, JP (1992 - 2003)

Company Filing History:

goldMedal62 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents
silverMedal3 out of 6 
 
Hosokawa Seisakusho Co., Ltd.
 patents
bronzeMedal2 out of 5 
 
Nissen Chemitec Corporation
 patents
4. 1 out of 7 
 
Takashimaya Nippatsu Kogyo Co., Ltd.
 patents
5. 2 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1989-2003

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Areas of Expertise:
Thermoplastic Resin
Multilayer Molded Article
Compression Molding
Impact Energy Structures
Hollow Molded Articles
Fiber-Reinforced Products
Molding Method
Manufacturing Device
64 patents (USPTO):Explore Patents
1. 6506335 - Mold for production of hollow thermoplastic resin molded article, and process for production of hollow thermoplastic resin molded article using the same (2003-01-14),
2. 6382949 - Metal mold for producing a synthetic resin molded product in a compression-molding method (2002-05-07),
3. 6348170 - Process for producing a multilayer molded article (2002-02-19),
4. 6328924 - Instrument panel (2001-12-11),
5. 6294121 - Mold for compression molding a resin article (2001-09-25),
6. 6280836 - Multilayer molded article (2001-08-28),
7. 6280678 - Process for producing multilayer molded article (2001-08-28),
8. 6231798 - Process for producing multi-layer molded product (2001-05-15),
9. 6203744 - Method for producing molded article of thermoplastic resin (2001-03-20),
10. 6202947 - Discharge device for mixing and discharging solids of thermoplastic substance and fibers and plasticizing device having this device (2001-03-20),
11. 6183680 - Process for producing multilayer molded article (2001-02-06),
12. 6146579 - Process for producing thermoplastic resin hollow molded article (2000-11-14),
13. 6106750 - Laminated skin material, molding method and laminated molded article (2000-08-22),
14. 6106260 - Mold useful in the production of hollow thermoplastic molded articles (2000-08-22),
15. 6080463 - Impact energy absorptive structures (2000-06-27),

Title: Masahito Matsumoto: Pioneering Innovator in the World of Technology

Introduction:

Masahito Matsumoto, a visionary inventor based in Osaka, Japan, has left an indelible mark on the world of technology through his relentless pursuit of innovation. With a whopping 64 patents to his name, Matsumoto's groundbreaking contributions have not only revolutionized the industry but have also inspired future generations to push the boundaries of what is deemed possible.

Latest Patents:

Matsumoto's latest patents include a mold for the production of hollow thermoplastic resin molded articles and a process for their production. This inventive mold features a gas passage that opens directly onto the surface of the mold member, enhancing the efficiency and precision of the molding process. Additionally, his metal mold for producing synthetic resin molded products in a compression-molding method showcases his prowess in creating versatile and adaptable manufacturing tools.

Career Highlights:

Throughout his illustrious career, Masahito Matsumoto has held key positions at esteemed companies such as Sumitomo Chemical Company, Limited, and Hosokawa Seisakusho Co., Ltd. His expertise and innovative spirit have earned him recognition as a trailblazer in the field of technology, with each patent marking a significant milestone in his journey towards excellence.

Collaborations:

In his quest for technological advancement, Matsumoto has collaborated with esteemed coworkers such as Nobuhiro Usui and Takahisa Hara. Together, they have synergized their skills and expertise to create groundbreaking solutions that have reshaped the landscape of the industry.

Conclusion:

Masahito Matsumoto's unwavering dedication to innovation and his remarkable contributions to the world of technology cement his status as a true pioneer in his field. His inventive spirit, coupled with his determination to push the boundaries of conventional practices, serves as a beacon of inspiration for aspiring inventors and innovators worldwide.

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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