Hitachi, Japan

Osao Sumita

This inventor holds 3 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.. Active years: 1985-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osao Sumita. Retrieved from https://idiyas.com/inventor/osao-sumita-0ltm6d96

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 = 5.6

ph-index = 2

Forward Citations = 20(Granted Patents)


Company Filing History:


Years Active: 1985-1986

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3 patents (USPTO):Explore Patents

Title: Osao Sumita: Innovator in Metal Surface Treatment

Introduction

Osao Sumita is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of metal surface treatment, holding a total of 3 patents. His innovative approaches have paved the way for advancements in the cleaning and maintenance of metal surfaces.

Latest Patents

Sumita's latest patents include a method for removing oxide on metal surfaces. This method involves immersing an object with an oxide layer in a liquid containing a complexing agent. By supplying external energy, electrons are generated and injected into the oxide, effectively cleaning the surface. Another significant patent is a process for removing metal surface oxide, which utilizes a deterging liquid to dissolve the oxide layer. This process is characterized by the immersion of a metal or carbon piece in the liquid, which is electrically connected to the metallic substance, enhancing the cleaning efficiency.

Career Highlights

Throughout his career, Osao Sumita has worked with prominent companies such as Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His experience in these organizations has contributed to his expertise in metal surface treatment technologies.

Collaborations

Sumita has collaborated with notable coworkers, including Yasumasa Furutani and Yasuo Hira. These partnerships have fostered innovation and development in his field.

Conclusion

Osao Sumita's contributions to metal surface treatment through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively.

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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