Tsukuba, Japan

Hiroshi Harada

This inventor holds 75 USPTO granted patents and 10 EPO patents, primarily in Superalloy Development (CPC class B29C). Top assignees: Sumitomo Chemical Company, Limited, National Institute for Materials Science, Shionogi Company Limited. Active years: 1981-2020.


% Patents Active = 81.3

 

Average Co-Inventor Count = 3.4

ph-index = 15

Forward Citations = 701(Granted Patents)

Forward Citations (Not Self Cited) = 685(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Shizuoka-shi, Shizuoka-ken JP (1988)
  • Takaishi, JP (1981 - 1989)
  • Toyonaka, JP (1992 - 1995)
  • Ehime, JP (1999)
  • Minoo, JP (2001 - 2003)
  • Nishitokyo, JP (2005)
  • Suita, JP (1998 - 2006)
  • Osaka, JP (1987 - 2011)
  • Ageo, JP (2012 - 2014)
  • Tsukuba, JP (1995 - 2017)
  • Singapore, SG (2015 - 2017)
  • Ibaraki, JP (1983 - 2020)

Company Filing History:

goldMedal27 out of 6,957 
 
Sumitomo Chemical Company, Limited
 patents
silverMedal18 out of 574 
 
National Institute for Materials Science
 patents
bronzeMedal7 out of 1,001 
 
Shionogi Company Limited
 patents
4. 5 out of 630 
 
Dainippon Ink and Chemicals, Incorporated
 patents
5. 5 out of 129 
 
Dainippon Pharmaceutical Company, Limited
 patents
6. 5 out of 104 
 
National Research Institute for Metals
 patents
7. 2 out of 10 
 
Fuji Seal, Inc.
 patents
8. 2 out of 1,191 
 
Ihi Corporation
 patents
9. 2 out of 341 
 
Ishikawajima-Harima Heavy Industries Co., Ltd.
 patents
10. 1 out of 140 
 
Dainippon Sumitomo Pharma Co., Ltd.
 patents
11. 1 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
12. 1 out of 377 
 
Japan Synthetic Rubber Co., Ltd.
 patents
13. 1 out of 53,211 
 
Kabushiki Kaisha Toshiba
 patents
14. 1 out of 40 
 
Mercian Corporation
 patents
15. 1 out of 1 
 
Mitsubishi Heavy Indsutries, Ltd.
 patent
16. 1 out of 651 
 
Mitsubishi Hitachi Power Systems, Ltd.
 patents
17. 1 out of 2 
 
Nissin Giken Co., Ltd.
 patents
18. 1 out of 37 
 
The Toyo Rubber Industry Co., Ltd.
 patents
19. 1 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
20. 3 out of 834,307 
Other
 patents
where one patent can have more than one assignee

Years Active: 1981-2020

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Areas of Expertise:
Ni-Based Superalloy
Heat-Resistant Alloy
Liquid Crystal Polyester
Resin Composition
Single Crystal Superalloy
Thermoplastic Resin
Aromatic Polysulfone
Nanostructured Materials
Heat Treatment Furnace
Aqueous Pigment Dispersion
Oxidation Resistance
Turbine Blade Components
75 patents (USPTO):Explore Patents

Title: The Innovative Journey of Hiroshi Harada: A Pioneer in Recycling Ni-based Superalloy Parts

Introduction:

Hiroshi Harada, a visionary inventor based in Tsukuba, Japan, has left an indelible mark on the world of technology and innovation. With a whopping 75 patents to his name, Harada is celebrated for his groundbreaking work in recycling Ni-based superalloy parts and creating nickel-based heat-resistant superalloys.

Latest Patents:

Harada's recent patents include the revolutionary "Ni-based superalloy part recycling method," which details a process for recycling single crystal superalloy parts with thermal barrier coatings. This method reduces recycling costs and enhances the efficiency of gas turbine engines. Another notable invention is the "Nickel-based heat-resistant superalloy," boasting specific composition ratios and undergoing precise heat treatment for superior performance.

Career Highlights:

Throughout his illustrious career, Hiroshi Harada has contributed his expertise to esteemed companies such as Sumitomo Chemical Company, Limited, and the National Institute for Materials Science. His innovative spirit and dedication to advancing materials science have led to significant advancements in the field of metallurgy and aerospace engineering.

Collaborations:

Harada has collaborated with distinguished colleagues like Toshiharu Kobayashi and Yutaka Koizumi, pooling their collective knowledge and experience to drive innovation forward. Together, they have pioneered new techniques and materials that have reshaped the landscape of superalloy manufacturing.

Conclusion:

In conclusion, Hiroshi Harada stands as a beacon of innovation, with his inventive spirit and dedication to creating a better future through technology. His impact on the world of inventions is truly remarkable, inspiring generations to come. Hiroshi Harada's contributions to the field of materials science and engineering continue to pave the way for sustainable and efficient solutions in the aerospace industry and beyond.

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