Tokyo, Japan

Keiji Ohki

This inventor holds 1 USPTO granted patent. Top assignees: Katayama Chemical, Inc., Mitsubishi Gas Chemical Company, Inc.. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Ohki. Retrieved from https://idiyas.com/inventor/keiji-ohki

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 2000

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1 patent (USPTO):Explore Patents

Title: Keiji Ohki: Innovator in Water Flow Technology

Introduction

Keiji Ohki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of water flow technology, particularly in preventing obstructions in aluminum brass pipes. His innovative methods have the potential to enhance the efficiency and longevity of water systems.

Latest Patents

Ohki holds a patent for a method aimed at preventing obstruction in aluminum brass pipes in a water flow path. This method involves continuously supplying iron ions or an iron ion supply compound to the water, maintaining a concentration of 0.005 to 0.05 mg/liter. Additionally, it includes the supply of hydrogen peroxide or a hydrogen peroxide supply compound at a concentration of 0.1 to 1.5 mg/liter. This approach effectively prevents the adhesion of organisms to the pipes while allowing for the formation of a corrosion-resistant coating inside them. Ohki's patent is a testament to his innovative thinking and problem-solving abilities in the field.

Career Highlights

Throughout his career, Keiji Ohki has worked with prominent companies such as Mitsubishi Gas Chemical Company, Inc. and Katayama Chemical, Inc. His experience in these organizations has contributed to his expertise in chemical processes and water management technologies.

Collaborations

Ohki has collaborated with notable colleagues, including Kunio Nishimura and Yoshiharu Wakao. These partnerships have likely enriched his work and led to further advancements in his field.

Conclusion

Keiji Ohki's contributions to water flow technology through his innovative patent demonstrate his commitment to solving practical problems in engineering. His work continues to influence the industry and improve water management systems.

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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