Chiba, Japan

Keizo Iwatani

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Jnc Corporation, Jnc Petrochemical Corporation. Active years: 2019-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Iwatani. Retrieved from https://idiyas.com/inventor/keizo-iwatani

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

USPTO Granted Patents = 2 

Average Co-Inventor Count = 2.7

ph-index = 1


Company Filing History:


Years Active: 2019-2020

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2 patents (USPTO):Explore Patents

Title: The Innovative Journey of Inventor Keizo Iwatani

Introduction

Keizo Iwatani is a distinguished inventor hailing from Chiba, Japan, recognized for his contributions to the field of lithium-ion battery technology and materials science. With a total of two patents to his name, Iwatani has made significant strides in developing advanced materials that enhance the performance and efficiency of batteries.

Latest Patents

Keizo Iwatani's latest patents focus on two remarkable innovations:

1. **Negative electrode active material for lithium-ion secondary battery**: This invention highlights a negative electrode active material that incorporates silicon oxide derived from a heat-treated hydrogen silsesquioxane polymer. The material demonstrates a carefully calibrated composition of silicon, oxygen, and hydrogen, showing specific infrared spectrum characteristics that are crucial for its effectiveness in battery applications.

2. **Spherical silicon oxycarbide particle material and manufacturing method thereof**: This patent presents a method for producing spherical silicon oxycarbide particles, which have a high degree of sphericity and adjustable average particle size. The creation of these particles involves hydrolysis and condensation reactions under controlled conditions, culminating in a novel precursor that can be sintered into a valuable material with wide-ranging applications.

Career Highlights

Throughout his career, Keizo Iwatani has been associated with notable companies such as JNC Corporation and JNC Petrochemical Corporation. His work has significantly influenced the development of materials that can be utilized effectively in various industrial applications, especially in energy storage technologies.

Collaborations

Iwatani's innovative efforts have often involved collaborations with esteemed colleagues in the field, including Tetsuro Kizaki and Yoshihito Takano. These partnerships have fostered a creative environment that pushes the boundaries of traditional materials science, leading to groundbreaking advancements.

Conclusion

Keizo Iwatani stands out as a pivotal figure in the realm of technological innovation. His patents not only contribute to the field of lithium-ion batteries but also reflect his commitment to advancing material science. As a result, he continues to inspire future inventors and researchers in their pursuit of groundbreaking solutions to contemporary challenges.

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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