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For the Inventor, By the Inventor

Kanazawa, Japan

Hirofumi Miyamoto

USPTO Granted Patents = 14

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 84(Granted Patents)


Location History:

  • Ishikawa-ken, JP (2004)
  • Kanazawa, JP (1997 - 2005)
  • Shiga-ken, JP (2005)
  • Nagaokakyo, JP (2005)

Company Filing History:

goldMedal14 out of 13,712 
 
Murata Manufacturing Co., Ltd.
 patents

Years Active: 1997-2005

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14 patents (USPTO):Explore Patents
1. 6970056 - Filter assembly and communication apparatus (2005-11-29),
2. 6909339 - Mounting structure of dielectric filter, dielectric filter device, mounting structure of dielectric duplexer, and communication device (2005-06-21),
3. 6885261 - Dielectric filter, antenna sharing device, and communication device having a voltage controlled reactance element for tuning the center frequency (2005-04-26),
4. 6853266 - Dielectric filter, dielectric duplexer, and communication device (2005-02-08),
5. 6768394 - Dielectric filter, dielectric duplexer and communication device (2004-07-27),
6. 6747527 - Dielectric duplexer and communication apparatus (2004-06-08),
7. 6642817 - Dielectric filter, dielectric duplexer, and communication device (2003-11-04),
8. 6621383 - Dielectric filter, dielectric duplexer, and communication device (2003-09-16),
9. 6590475 - Filter, antenna duplexer, and communication apparatus incorporating the same (2003-07-08),
10. 6522220 - Frequency variable filter, antenna duplexer, and communication apparatus incorporating the same (2003-02-18),
11. 6480701 - Composite filter, duplexer and communication apparatus (2002-11-12),
12. 6476687 - Dielectric filter providing TEM- and TE-mode resonators and communicaton device using the same (2002-11-05),
13. 5945896 - Dielectric filter (1999-08-31),
14. 5691674 - Dielectric resonator apparatus comprising at least three (1997-11-25),

Title: Hirofumi Miyamoto: Innovator in Communication Technology

Introduction

Hirofumi Miyamoto is a prominent inventor based in Kanazawa, Japan. He has made significant contributions to the field of communication technology, holding a total of 14 patents. His work focuses on enhancing the performance and efficiency of communication devices.

Latest Patents

Miyamoto's latest patents include a filter assembly and communication apparatus. This innovative filter assembly consists of a transmission filter, a reception filter, a change-over switch, and phase circuits. The transmission filter connects to a first antenna terminal and a transmission terminal, while the reception filter connects to a second antenna terminal via the change-over switch. This design allows for optimum filter characteristics by utilizing a fixed number of resonators, regardless of the switching control. Additionally, he has developed a mounting structure for dielectric filters and duplexers, which balances electric field strengths to suppress spurious TE-mode signals.

Career Highlights

Hirofumi Miyamoto is associated with Murata Manufacturing Co., Ltd., a leading company in the electronics industry. His work has significantly impacted the development of advanced communication technologies, making him a key figure in his field.

Collaborations

Miyamoto has collaborated with notable coworkers, including Kikuo Tsunoda and Masayuki Atokawa. Their combined expertise has contributed to the success of various projects and innovations.

Conclusion

Hirofumi Miyamoto's contributions to communication technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the future of communication devices and systems.

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