Takahiro Ishii

Title: Takahiro Ishii: Advances in Magnetic Materials and Ceramic Electronics.

Introduction

Takahiro Ishii is an inventor associated with Gunma, Japan. His patent work spans magnetic materials and multilayer ceramic electronic devices. He is associated with Taiyo Yuden Co., Ltd. and Proterial, Ltd., and has 2 patents listed in the information provided.

Latest Patents

**Iron-Chromium-Cobalt Alloy Magnet and Method for Producing Same.** This invention aims to improve the magnetic characteristics of iron-chromium-cobalt alloy magnets, particularly their maximum energy product. The described magnet includes titanium and limits the average number density of titanium-enriched phases at least 3 μm in maximum diameter to fewer than 1.0 per 10,000 μm in cross-section. It also specifies a squareness ratio greater than 0.72.

**Multilayer Ceramic Electronic Device and Circuit Board Having Same.** This invention describes a multilayer ceramic electronic device with external electrodes covering the ends of its main body. It specifies proportions for the device’s height relative to its width and length, and an outermost tin-plating layer on each electrode. The tin-plating film is thinner on the end surfaces than on the side surfaces.

Career Highlights

Ishii’s listed work reflects contributions to two distinct areas of materials and electronic-device engineering. The magnet patent addresses alloy composition and microstructure, while the ceramic-device patent focuses on device geometry and electrode plating.

Collaborations

Koji Kawase and Kazuya Maekawa are identified as Ishii’s coworkers.

Conclusion

Takahiro Ishii’s patent portfolio highlights work on improving magnetic performance and refining the construction of multilayer ceramic electronic devices.