Company Filing History:
Years Active: 2004
Title: Natsuko Ishihara: Innovator in Thermal Conductivity
Introduction
Natsuko Ishihara is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of thermal conductivity through her innovative patents. With a total of three patents to her name, Ishihara is recognized for her expertise and creativity in developing advanced materials.
Latest Patents
Ishihara's latest patents include a thermally conductive sheet and a heat conductive sheet. The thermally conductive sheet comprises boron nitride powder as a first thermally conductive filler dispersed into an organic matrix. This boron nitride powder is hexagonal boron nitride (h-BN) and includes primary particles and secondary aggregates formed by the aggregation of the primary particles. Notably, at least part of the secondary aggregates is 50 µm or more in size, with the boron nitride powder preferably including 1 to 20 percent by weight of these larger aggregates. The organic matrix material is preferably silicone rubber. The second patent, the heat conductive sheet, consists of an organic matrix and heat conductive filler contained at a volume percent between 30% and 80%. The heat conductive filler comprises spherical shaped alumina grains with an average grain diameter ranging between 50 µm and 80 µm, including micro grains having a grain diameter of 30 µm or less at a proportion of 5 volume % or less with respect to the total amount of the spherical shaped alumina grains.
Career Highlights
Ishihara works at Polymatech Co., Ltd., where she continues to push the boundaries of material science. Her work has garnered attention for its practical applications in various industries, particularly in electronics and thermal management.
Collaborations
Some of her notable coworkers include Masayuki Tobita and Naoyuki Shimoyama, who have collaborated with her on various projects and innovations.
Conclusion
Natsuko Ishihara is a trailblazer in the field of thermal conductivity, with her innovative patents paving the way for advancements in material science. Her contributions are invaluable to the industry, and her work continues to inspire future innovations.