Tokyo, Japan

Iwao Ashahi

This inventor holds 1 USPTO granted patent. Top assignees: Ohkura Electric Co., Ltd., Other. Active years: 1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Iwao Ashahi. Retrieved from https://idiyas.com/inventor/iwao-ashahi

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 = 5.0

ph-index = 1

Forward Citations = 12(Granted Patents)


Company Filing History:

goldMedal1 out of 20 
 
Ohkura Electric Co., Ltd.
 patents
silverMedal1 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1992

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1 patent (USPTO):Explore Patents

Title: Iwao Ashahi: Innovator in Furnace Temperature Control

Introduction

Iwao Ashahi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of temperature control systems, particularly in furnace operations. His innovative approach has led to the development of a unique apparatus that enhances the efficiency and accuracy of temperature management in industrial settings.

Latest Patents

Iwao Ashahi holds a patent for a "Furnace temperature control apparatus using adjustment input." This learning-type temperature control apparatus is designed for furnaces that operate repetitively with a specific temperature change pattern over time. The apparatus utilizes a dual system model that encompasses both the furnace and its controller. For each cycle of the operating pattern, the adjustment input (r) is calculated based on the dual system model and the error between the preset temperature values (r) and the actual inside temperatures (y) of the furnace. This adjustment input is then applied to the system to ensure that the inside temperatures accurately track the preset values. After each operational cycle, the adjustment input is updated using the latest error value, allowing for continuous improvement in temperature control.

Career Highlights

Throughout his career, Iwao Ashahi has worked with various companies, including Ohkura Electric Co., Ltd. His experience in the industry has allowed him to refine his skills and contribute to advancements in temperature control technology.

Collaborations

Iwao has collaborated with notable colleagues such as Nobuhisa Akaba and Chitoshi Yamada. Their combined expertise has furthered the development of innovative solutions in the field.

Conclusion

Iwao Ashahi's contributions to furnace temperature control technology exemplify the impact of innovative thinking in industrial applications. His patent and collaborative efforts highlight the importance of continuous improvement in engineering 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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