Tokyo, Japan

Hitoshi Hagihara

This inventor holds 3 USPTO granted patents. Top assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.. Active years: 1991-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Hagihara. Retrieved from https://idiyas.com/inventor/hitoshi-hagihara

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 = 3.0

ph-index = 2

Forward Citations = 40(Granted Patents)


Company Filing History:


Years Active: 1991-1996

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3 patents (USPTO):Explore Patents

Title: Hitoshi Hagihara: Innovator in Waste Management Technologies

Introduction

Hitoshi Hagihara is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of waste management through his innovative inventions. With a total of 3 patents, Hagihara has focused on developing technologies that improve the disposal and recycling of waste materials.

Latest Patents

Hagihara's latest patents include the "Ash Melting Furnace" and a "Waste Disposal Method and Apparatus." The ash melting furnace is designed to dispose of combustion ash from incinerated municipal waste by melting it using the unburnt carbon contained in the ash itself. This furnace features a stationary plasma torch that utilizes air as the working gas, projecting a hot gas jet onto the combustion ash. Additionally, the furnace is equipped with a torch unit controller that activates the plasma torch to further heat and melt the ash.

The waste disposal method involves combusting waste in an incinerator, which produces ash that is then transferred to the melting furnace. The process is influenced by the amount of unburned carbon in the ash, which is affected by the gas temperature at the waste inlet and the burn-out point in the incinerator. This method includes steps to monitor and control these parameters to ensure optimal melting conditions in the furnace.

Career Highlights

Hitoshi Hagihara is associated with Ishikawajima-Harima Heavy Industries Co., Ltd., where he has been instrumental in advancing waste management technologies. His work has garnered attention for its innovative approach to recycling and waste disposal.

Collaborations

Hagihara has collaborated with notable colleagues such as Satoshi Inoue and Takehiko Motomura. Their combined expertise has contributed to the development of effective waste management solutions.

Conclusion

Hitoshi Hagihara's contributions to waste management through his patents and collaborative efforts highlight his commitment to innovation in this critical field. His work continues to influence the way waste is processed and managed, paving the way for more sustainable practices.

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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