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For the Inventor, By the Inventor

Saitama, Japan

Kenji Itoh

This inventor holds 6 USPTO granted patents and 1 EPO patent. Top assignee: Hitachi Metals, Ltd.. Active years: 1991-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Itoh. Retrieved from https://idiyas.com/inventor/kenji-itoh-q11lryg2

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

USPTO Granted Patents = 6

% Patents Active = 100.0


Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 46(Granted Patents)


Location History:

  • Moka, JP (1991 - 1998)
  • Tochigi-ken, JP (2001 - 2002)
  • Saitama-ken, JP (2012)

Company Filing History:

goldMedal6 out of 2,333 
 
Hitachi Metals, Ltd.
 patents

Years Active: 1991-2012

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6 patents (USPTO):Explore Patents
1. 8241558 - High-Cr, high-Ni, heat-resistant, austenitic cast steel and exhaust equipment members formed thereby (2012-08-14),
2. 6383310 - Exhaust equipment member, internal combustion engine system using same, and method for producing such exhaust equipment member (2002-05-07),
3. 6256990 - Exhaust manifold integrally cast with turbine housing for turbocharger (2001-07-10),
4. 5784881 - Multi-part exhaust manifold assembly with welded connections (1998-07-28),
5. 5129443 - Method of manufacturing a product by estimating thermal stress using a (1992-07-14),
6. 5048346 - Method of estimating the thermal stress of a heat-resistant member by (1991-09-17),

Title: Kenji Itoh: Innovator in Heat-Resistant Materials

Introduction

Kenji Itoh is a prominent inventor based in Saitama-ken, Japan. He has made significant contributions to the field of materials science, particularly in the development of heat-resistant alloys. With a total of 6 patents to his name, Itoh's work has had a substantial impact on various industrial applications.

Latest Patents

Among his latest patents, Itoh has developed a high-Cr, high-Ni, heat-resistant, austenitic cast steel. This innovative material comprises main components such as C, Si, Mn, Cr, Ni, W and/or Mo, and Nb, with the balance being substantially Fe and inevitable impurities. The specific composition includes N being 0.01-0.5%, Al being 0.23% or less, and O being 0.07% or less by weight. Additionally, he has patented exhaust equipment members produced using this advanced steel, which are designed to withstand extreme conditions.

Another notable patent involves an exhaust equipment member that features an exhaust gas path portion with a thickness of 5 mm or less. This member is made from a heat-resistant, high-Cr, high-Ni, austenitic cast steel with specific weight ratios of Cr/Ni and Mn/S. The composition includes 0.2-1.0% of C, 2% or less of Si, and 20-30% of Cr, among other elements. This innovative design ensures a weight loss by oxidation of 50 mg/cm² or less when subjected to high temperatures.

Career Highlights

Kenji Itoh is currently employed at Hitachi Metals, Ltd., where he continues to push the boundaries of material science. His work has not only advanced the understanding of heat-resistant materials but has also led to practical applications in various industries.

Collaborations

Itoh has collaborated with notable colleagues such as Koki Otsuka and Keijiro Hayashi. Their combined expertise has contributed to the successful development of innovative materials and technologies.

Conclusion

Kenji Itoh's contributions to the field of heat-resistant materials exemplify the importance of innovation in engineering and manufacturing. His patents reflect a commitment to advancing technology and improving industrial processes.

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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