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For the Inventor, By the Inventor

Tokyo, Japan

Hirohisa Yamamoto

This inventor holds 10 USPTO granted patents and 1 published patent application. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Nec Corporation, Elpida Memory, Inc.. Active years: 1993-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirohisa Yamamoto. Retrieved from https://idiyas.com/inventor/hirohisa-yamamoto

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

USPTO Granted Patents = 10 

% Patents Active = 80.0

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 33(Granted Patents)


Location History:

  • Hyogo, JP (1993)
  • Itami, JP (1994)
  • Minato-ku, JP (2009)
  • Tokyo, JP (1998 - 2022)

Company Filing History:

goldMedal4 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
silverMedal4 out of 36,684 
 
Nec Corporation
 patents
bronzeMedal2 out of 1,458 
 
Elpida Memory, Inc.
 patents

Years Active: 1993-2022

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10 patents (USPTO):Explore Patents
1. 11394512 - Wireless communication terminal (2022-07-19),
2. 7902027 - Method of manufacturing a semiconductor device including recessed-channel-array MOSFET having a higher operational speed (2011-03-08),
3. 7745303 - Method of manufacturing a semiconductor device and the semiconductor device (2010-06-29),
4. 7539731 - Method for automatically sending messages at desired appropriate timings and an automatic message sending service system (2009-05-26),
5. 6631376 - Exchange servicing development support system with a function of automatic replacement of edited contents (2003-10-07),
6. 6624095 - Method for manufacturing a semiconductor device (2003-09-23),
7. 5734381 - Cancel undo method and system for tree structure data edition based on (1998-03-31),
8. 5354986 - Ion implantation apparatus (1994-10-11),
9. 5293508 - Ion implanter and controlling method therefor (1994-03-08),
10. 5187558 - Stress reduction structure for a resin sealed semiconductor device (1993-02-16),

Title: Hirohisa Yamamoto: Innovator in Wireless Communication and Semiconductor Technology

Introduction

Hirohisa Yamamoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of wireless communication and semiconductor technology. With a total of 10 patents to his name, Yamamoto's work has had a lasting impact on modern technology.

Latest Patents

One of his latest patents is for a wireless communication terminal. This innovative device includes a wireless communication part that transmits temporarily remaining information linked with place and time to a communication base station. It also receives this information stored in the communication base station. The terminal features a storage device for the temporarily remaining information and a deletion part that removes this information after a predetermined time. Another notable patent involves a method of manufacturing a semiconductor device that includes a recessed-channel-array MOSFET with a higher operational speed. This device features a gate electrode with a portion received in a recess, designed to reduce parasitic capacitance.

Career Highlights

Yamamoto has worked with several notable companies throughout his career, including Mitsubishi Electric Corporation and NEC Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas.

Collaborations

Some of his notable coworkers include Shigeru Shiratake and Takashi Shinoda. Their collaboration has contributed to the advancement of technology in their respective fields.

Conclusion

Hirohisa Yamamoto's contributions to wireless communication and semiconductor technology highlight his role as a leading inventor. His innovative patents continue to influence the industry and pave the way for future advancements.

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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