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For the Inventor, By the Inventor

Sendai, Japan

Masayoshi Ishii

USPTO Granted Patents = 11

Average Co-Inventor Count = 5.0

ph-index = 6

Forward Citations = 63(Granted Patents)


Company Filing History:

goldMedal10 out of 259 
 
Nec Tokin Corporation
 patents
silverMedal1 out of 1 
 
Nec Tokin Corporaton
 patent

Years Active: 2003-2006

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11 patents (USPTO):Explore Patents
1. 6995643 - Magnetically biasing bond magnet for improving DC superposition characteristics of magnetic coil (2006-02-07),
2. 6906608 - Magnetic core including magnet for magnetic bias and inductor component using the same (2005-06-14),
3. 6856231 - Magnetically biasing bond magnet for improving DC superposition characteristics of magnetic coil (2005-02-15),
4. 6788185 - Powder core and high-frequency reactor using the same (2004-09-07),
5. 6753751 - Magnetic core including magnet for magnetic bias and inductor component using the same (2004-06-22),
6. 6717504 - Magnetic core including bias magnet and inductor component using the same (2004-04-06),
7. 6710693 - Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same (2004-03-23),
8. 6646532 - Powder core and reactor using the same (2003-11-11),
9. 6621399 - Powder core and high-frequency reactor using the same (2003-09-16),
10. 6621398 - Magnetic core comprising a bond magnet including magnetic powder whose particle's surface is coated with oxidation-resistant metal (2003-09-16),
11. 6590485 - Magnetic core having magnetically biasing bond magnet and inductance part using the same (2003-07-08),

Title: The Innovative Contributions of Masayoshi Ishii

Introduction

Masayoshi Ishii is a prominent inventor based in Sendai, Japan, known for his significant contributions to the field of magnetic technology. With a total of 11 patents to his name, Ishii has made remarkable advancements that enhance the performance of inductive components in various applications.

Latest Patents

Ishii's latest patents include a magnetically biasing bond magnet designed to improve the DC superposition characteristics of magnetic coils. This innovative bond magnet comprises magnetic powder and plastic resin, with a resin content of 20% or more by volumetric ratio. The specific resistance of this magnet is 0.1 Ω·cm or more, utilizing rare-earth magnetic powder with an intrinsic coercive force of 5 kOe or more and a Curie point of 300°C or more. Another notable patent involves a magnetic core that includes a magnet for magnetic bias and an inductor component. This inductor features a magnetic core with a magnetic gap and a coil, utilizing a bonded magnet containing resin and magnet powder, which enhances its performance.

Career Highlights

Throughout his career, Ishii has worked with notable companies, including NEC Tokin Corporation. His work has focused on developing advanced magnetic materials and components that are essential for modern electronic devices. His innovative designs have contributed to the efficiency and effectiveness of various inductive applications.

Collaborations

Ishii has collaborated with esteemed colleagues such as Teruhiko Fujiwara and Haruki Hoshi. These partnerships have fostered a creative environment that has led to groundbreaking advancements in magnetic technology.

Conclusion

Masayoshi Ishii's contributions to the field of magnetic technology are invaluable. His innovative patents and collaborations have significantly advanced the performance of inductive components, making him a key figure in the industry.

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