Fukuoka, Japan

Mahito Soeda

This inventor holds 5 USPTO granted patents. Top assignees: Nippon Steel Chemical Co., Ltd., Agency of Industrial Science and Technology, Iwatani Industrial Gases Corp.. Active years: 1982-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mahito Soeda. Retrieved from https://idiyas.com/inventor/mahito-soeda

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 4

Forward Citations = 21(Granted Patents)


Location History:

  • Onga, JP (1982)
  • Ongamachi, JP (1987)
  • Kitakyushu, JP (2003)
  • Fukuoka, JP (1988 - 2005)

Company Filing History:


Years Active: 1982-2005

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5 patents (USPTO):Explore Patents

Title: Mahito Soeda: Innovator in Sublimation Refining and Organic EL Materials

Introduction

Mahito Soeda is a distinguished inventor based in Fukuoka, Japan. He has made significant contributions to the fields of sublimation refining and organic electroluminescent (EL) materials. With a total of 5 patents to his name, Soeda's work has advanced the technology used in various industrial applications.

Latest Patents

One of Soeda's notable inventions is a sublimation purifying method and apparatus. This invention focuses on a method for sublimation refining that yields high-purity products while preventing corrosion of the apparatus, contamination of the product, and changes in product quality. The apparatus includes a heat-generating unit made from a material that generates heat through electromagnetic induction, along with sublimating and collecting units that can be independently controlled in temperature. This innovative design ensures that the inner surfaces of the sublimating and collecting units are made from materials that are inert to sublimable substances.

Another significant patent is related to an organic aluminum complex that exhibits excellent performance in organic EL devices. The organic EL material comprises an organoaluminum complex that generates minimal heat in the range of 350-400 °C and absorbs heat in the range of 400-450 °C. The preparation process involves refining the raw material (8-quinolinolato)aluminum through sublimation under reduced pressure, ensuring optimal temperature conditions for both sublimation and product recovery.

Career Highlights

Throughout his career, Mahito Soeda has worked with reputable companies such as Nippon Steel Chemical Co., Ltd. and Shinnikka Environmental Engineering Co., Ltd. His experience in these organizations has contributed to his expertise in the development of innovative technologies.

Collaborations

Soeda has collaborated with notable coworkers, including Hiroshi Okazaki and Hiroshi Miyazaki. Their joint efforts have furthered advancements in the fields of sublimation refining and organic materials.

Conclusion

Mahito Soeda's contributions to sublimation refining and organic EL materials highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to quality and efficiency in industrial applications.

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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