Tokyo, Japan

Masazumi Ohishi

This inventor holds 2 USPTO granted patents and 3 published patent applications and 2 EPO patents. Top assignees: Mitsubishi Heavy Industries Limited, Kyushu Electric Power Co., Inc.. Active years: 2013-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masazumi Ohishi. Retrieved from https://idiyas.com/inventor/masazumi-ohishi

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 100.0

 

Average Co-Inventor Count = 6.5

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2013-2015

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2 patents (USPTO):Explore Patents

Title: Innovations by Masazumi Ohishi

Introduction

Masazumi Ohishi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of battery technology, holding 2 patents that showcase his innovative approach to energy storage solutions.

Latest Patents

Ohishi's latest patents include a Battery State-of-Charge Calculation Device and an Abnormality Prediction System for Secondary Batteries. The Battery State-of-Charge Calculation Device features a SOCV calculation unit that outputs a first state of charge based on voltage data, and a SOCI calculation unit that provides a second state of charge based on current data. Additionally, it includes an estimated impedance voltage calculation unit that calculates an impedance voltage value based on the effective state of charge and current data. The device also has a static determination unit that assesses whether the impedance voltage value remains static for a predetermined time, and a SOC decision unit that outputs the effective state of charge based on these determinations.

The Abnormality Prediction System for Secondary Batteries is designed to detect parameter values corresponding to multiple secondary batteries. It determines whether all parameter values are normal and identifies any battery that deviates from the norm based on a calculated reference value. This innovative system enhances the reliability and safety of battery operations.

Career Highlights

Masazumi Ohishi has worked with prominent companies such as Mitsubishi Heavy Industries Limited and Kyushu Electric Power Co., Inc. His experience in these organizations has contributed to his expertise in battery technology and innovation.

Collaborations

Ohishi has collaborated with notable colleagues, including Tetsuro Shigemizu and Masami Iida. Their joint efforts have further advanced the field of battery technology.

Conclusion

Masazumi Ohishi's contributions to battery technology through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to impact the development of efficient and reliable energy storage solutions.

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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