Teruhisa Ishikawa

Title: Teruhisa Ishikawa and Battery Electrode Innovations.

Introduction

Teruhisa Ishikawa is an inventor associated with Kadoma, Japan, whose patent work focuses on battery electrode groups and their manufacture. His listed portfolio includes 2 patents and reflects attention to both electrode design and precision winding processes.

Latest Patents

“Battery and Method for Manufacturing Spiral Electrode Group for Use Therein” describes a wound electrode group made from positive and negative electrode plates separated by a pair of separators. The patent specifies a relationship between the lengths of adjacent turns, the electrode stack’s thickness, the wound group’s diameter, and a coefficient based on the active materials’ expansion characteristics. This approach addresses how the electrode group is formed as its materials expand.

“Spiral Electrode Group Winding Method and Device and Battery Using Them” presents a winding process designed to reduce electrode-plate alignment deviations. Edge-position detection and a sequence of chucks guide, hold, and feed the plates to a winding core while maintaining tension. The patent also describes a generally hexagonal cross-section for the wound group, supporting flatness when groups are arranged side by side.

Career Highlights

Ishikawa’s listed company affiliations include Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His patent work connects battery construction with manufacturing equipment and methods intended to improve the consistency of spiral electrode groups.

Collaborations

Yoshiki Osawa and Mitsuru Funaki are identified as Ishikawa’s coworkers. Their names are associated with the collaborative context of his battery-related innovation work.

Conclusion

Teruhisa Ishikawa’s patents address key aspects of battery electrode design and winding, combining material-aware construction with methods for improving manufacturing precision.