Company Filing History:

13 out of 386

Toda Kogyo Corporation

patents

4 out of 10,239

Sumitomo Electric Industries, Limited

patents

where one patent can have more than one assignee

Years Active: 2000-2013

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8557330 - Manufacturing method of soft magnetic material and manufacturing method of dust core (2013-10-15),

2. 8323725 - Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic material (2012-12-04),

3. 8153256 - Soft magnetic material comprising an insulating layer containing aluminum, silicon, phosphorous and oxygen; dust magnetic core; process for producing soft magnetic material; and process for producing dust magnetic core (2012-04-10),

4. 7767034 - Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic material (2010-08-03),

5. 6723456 - Hematite particles aggregates, non-magnetic undercoatt layer for magnetic recording medium using the same, and magnetic recording medium having the non-magnetic undercoat layer (2004-04-20),

6. 6689452 - Magnetic recording medium (2004-02-10),

7. 6638675 - Black magnetic toner (2003-10-28),

8. 6562532 - Black magnetic toner and black magnetic composite particles therefor (2003-05-13),

9. 6458453 - Magnetic recording medium (2002-10-01),

10. 6416864 - Black magnetic composite particles for a black magnetic toner (2002-07-09),

11. 6379855 - Black magnetic toner and black magnetic composite particles therefor (2002-04-30),

12. 6251555 - Black magnetic composite particles for black magnetic toner and black magnetic toner using the same (2001-06-26),

13. 6130017 - Black non-magnetic composite particles for black toner and black toner (2000-10-10),

Title: Seiji Ishitani: Innovator in Soft Magnetic Materials

Introduction

Seiji Ishitani is a prominent inventor based in Hiroshima, Japan, known for his significant contributions to the field of soft magnetic materials. With a total of 13 patents to his name, Ishitani has made remarkable advancements that have implications in various industries.

Latest Patents

Ishitani's latest patents include a manufacturing method of soft magnetic material and a manufacturing method of dust core. The manufacturing method of a soft magnetic material involves preparing a metal magnetic particle primarily composed of iron and forming an insulating film around it. This process includes mixing and stirring the metal magnetic particle with aluminum alkoxide, silicon alkoxide, and phosphoric acid. His other patent focuses on a soft magnetic material that consists of a composite magnetic particle with a metal magnetic particle covered by an insulating coating. This coating contains iron phosphate and aluminum phosphate compounds, which help reduce iron loss by adjusting the atomic ratios of iron and aluminum at the contact surface.

Career Highlights

Throughout his career, Seiji Ishitani has worked with notable companies such as Toda Kogyo Corporation and Sumitomo Electric Industries, Limited. His work has been instrumental in developing innovative solutions in the field of magnetic materials.

Collaborations

Ishitani has collaborated with several professionals in his field, including Hiroko Morii and Kazuyuki Hayashi. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Seiji Ishitani's work in soft magnetic materials showcases his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of material science and its applications, making him a significant figure in his field.

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