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For the Inventor, By the Inventor

Saitama, Japan

Hiroyuki Aoyama

This inventor holds 19 USPTO granted patents and 3 EPO patents. Top assignees: Hitachi Metals, Ltd., Hitachi, Ltd., Other. Active years: 1989-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Aoyama. Retrieved from https://idiyas.com/inventor/hiroyuki-aoyama

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 19

% Patents Active = 52.6

 

Average Co-Inventor Count = 2.8

ph-index = 10

Forward Citations = 324(Granted Patents)


Location History:

  • Hitachi, JP (1989)
  • Kumagaya, JP (1993 - 2010)
  • Saitama, JP (1996 - 2012)
  • Saitama-ken, JP (2002 - 2012)

Company Filing History:

goldMedal18 out of 2,333 
 
Hitachi Metals, Ltd.
 patents
silverMedal2 out of 42,726 
 
Hitachi, Ltd.
 patents
bronzeMedal1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1989-2012

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19 patents (USPTO):Explore Patents
1. 8253643 - Chip antenna and its production method, and antenna apparatus and communications apparatus comprising such chip antenna (2012-08-28),
2. 8154464 - Magnetic material antenna and ferrite sintered body (2012-04-10),
3. 7903036 - Antenna device and wireless communication apparatus using the same (2011-03-08),
4. 7821468 - Chip antenna, an antenna device, and a communication equipment (2010-10-26),
5. 7701399 - Chip antenna, an antenna device, and a communication equipment (2010-04-20),
6. 7679569 - Antenna device and multi-band type wireless communication apparatus using same (2010-03-16),
7. 7651626 - Hexagonal ferrite, antenna using the same and communication apparatus (2010-01-26),
8. 7642970 - Antenna device and wireless communication apparatus using same (2010-01-05),
9. 7148851 - Antenna device and communications apparatus comprising same (2006-12-12),
10. 7061434 - Surface mount type chip antenna and communication equipment mounted therewith (2006-06-13),
11. 7015862 - Antenna, method for manufacturing the antenna, and communication apparatus including the antenna (2006-03-21),
12. 6873291 - Surface-mounted antenna and communications apparatus comprising same (2005-03-29),
13. 6639559 - Antenna element (2003-10-28),
14. 6476767 - Chip antenna element, antenna apparatus and communications apparatus comprising same (2002-11-05),
15. 6452554 - Antenna element and radio communication apparatus (2002-09-17),

Title: Hiroyuki Aoyama: Pioneer in Antenna Technology

Introduction: Hiroyuki Aoyama, based in Saitama, Japan, is a prominent inventor with a robust portfolio of 19 patents. His contributions to the field of antenna technology have made significant impacts, particularly with his innovative approaches in designing and producing chip antennas.

Latest Patents: Aoyama's latest patents showcase his expertise and creativity in the realm of electronic communications. Two notable inventions include a chip antenna and its production method, as well as an antenna apparatus and communications apparatus incorporating such a chip antenna. The chip antenna comprises a magnetic substrate made of Z-type or Y-type ferrite, having a through-hole that extends linearly along its center axis, with a conductor penetrating through this hole. Another of his recent patents discusses a magnetic material antenna utilizing a ferrite sintered body, with specific compositions of Y-type ferrite and additional components to enhance its performance.

Career Highlights: Throughout his career, Hiroyuki Aoyama has been associated with notable companies such as Hitachi Metals, Ltd. and Hitachi, Ltd. His work has consistently centered around developing advanced materials and technologies for improved communication systems, establishing him as a key figure in the field.

Collaborations: Aoyama has collaborated with esteemed coworkers, including Yasunori Takaki and Masayuki Gonda. Their combined expertise and innovative spirit have contributed to the successful development of various patents and technologies, furthering advancements in antenna design and production.

Conclusion: Hiroyuki Aoyama's dedication to innovation in antenna technology is evident through his numerous patents and collaborations. His work continues to influence the field, paving the way for future advancements in communication systems. As technology evolves, Aoyama's contributions will undoubtedly remain pivotal in shaping the landscape of electronic communications.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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