This inventor holds 3 USPTO granted patents. Top assignees: Nec Corporation, Hitachi Metals Precision, Ltd.. Active years: 1989-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Shimane, JP (1989)
- Tokyo, JP (1999)
Company Filing History:
3 out of 36,684 
1 out of 8 Years Active: 1989-1999
Title: **The Innovative Journey of Katsuhisa Ishikawa**
Introduction
Katsuhisa Ishikawa, an esteemed inventor based in Tokyo, Japan, has made significant contributions to the field of material science with a focus on ferrite technology. With a total of three patents, his work exemplifies the intersection of innovation and practical application in modern electronics.
Latest Patents
Ishikawa's latest patents include advanced developments in Ni-Zn type ferrites, which are critical for various electronic applications. One of his notable inventions is a Ni-Zn type ferrite characterized by the general formula: Ni.sub.X Zn.sub.1-X Fe.sub.2-Y-Z Mn.sub.Y Zr.sub.Z O.sub.4. He detailed a method for its formation, which includes mixing raw powder for 64 hours, firing at 850°C in an oxygen atmosphere, and subsequent processing to achieve optimal properties. Another significant patent features a Ni-Zn base ferrite that boasts a low dielectric loss (tan.delta.(.epsilon.)) of around 10.sup.-3, along with high saturation magnetization (4.pi.Ms). This innovation addresses the need for materials with enhanced performance in electronic devices.
Career Highlights
Throughout his career, Katsuhisa Ishikawa has been associated with several prominent companies, including NEC Corporation and Hitachi Metals Precision, Ltd. His roles in these organizations have allowed him to contribute directly to research and development in advanced materials, solidifying his reputation as a leading figure in his field.
Collaborations
Ishikawa's success is also attributed to his collaboration with talented professionals in the industry. Notable coworkers include Yasuhiro Sasaki and Atsushi Ochi, whose teamwork has played a crucial role in the progression of their shared projects and the advancement of ferrite technologies.
Conclusion
Katsuhisa Ishikawa's innovative mindset and dedication to his craft have positioned him as a valuable inventor in the realm of material sciences. With his significant contributions through patents and collaborations, Ishikawa continues to impact the field, paving the way for future advancements in electronic materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile