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For the Inventor, By the Inventor

Tokyo, Japan

Takashi Sumiyoshi

This inventor holds 21 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Data Processing Systems. Top assignees: Hitachi, Ltd., Hitachi Microcomputer Engineering, Ltd.. Active years: 1987-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Sumiyoshi. Retrieved from https://idiyas.com/inventor/takashi-sumiyoshi

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

USPTO Granted Patents = 21 

% Patents Active = 61.9

 

Average Co-Inventor Count = 2.6

ph-index = 10

Forward Citations = 490(Granted Patents)


Location History:

  • Yokohama, JP (1987 - 1997)
  • Kokubunji, JP (2008 - 2011)
  • Tokyo, JP (2018 - 2024)

Company Filing History:

goldMedal21 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 149 
 
Hitachi Microcomputer Engineering, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1987-2025

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Areas of Expertise:
Emotion Recognition
Workshop Assistance
Dialog Devices
Control Systems
Sound Signal Processing
Mobile Robots
Packet Communication
Network Management
Database Systems
Task Scheduling
Multicast Delivery
Distributed Systems
21 patents (USPTO):Explore Patents
1. 12499905 - Emotion recognition system and emotion recognition method (2025-12-16),
2. 12086731 - Workshop assistance system and workshop assistance method (2024-09-10),
3. 11605377 - Dialog device, dialog method, and dialog computer program (2023-03-14),
4. 10732643 - Control system, moving object, and control apparatus (2020-08-04),
5. 10691898 - Synchronization method for visual information and auditory information and information processing device (2020-06-23),
6. 10629222 - Sound signal procession method and device (2020-04-21),
7. 10339381 - Control apparatus, control system, and control method (2019-07-02),
8. 9989626 - Mobile robot and sound source position estimation system (2018-06-05),
9. 7864703 - Packet communication device (2011-01-04),
10. 7826393 - Management computer and computer system for setting port configuration information (2010-11-02),
11. 7801060 - Network management apparatus and network system (2010-09-21),
12. 7333488 - Multicast delivery control apparatus and method (2008-02-19),
13. 5638508 - Method and a system for processing a log record (1997-06-10),
14. 5377352 - Method of scheduling tasks with priority to interrupted task locking (1994-12-27),
15. 5333314 - Distributed data base system of composite subsystem type, and method of (1994-07-26),

Title: The Innovative Legacy of Takashi Sumiyoshi

Introduction:

Takashi Sumiyoshi, a renowned inventor hailing from Tokyo, Japan, has contributed significantly to the field of workshop assistance systems and dialog devices with numerous patents under his belt.

Latest Patents:

Some of his latest patents include the Workshop Assistance System and Workshop Assistance Method, designed to facilitate idea generation in workshops by utilizing audio data. He also developed the Dialog Device, Dialog Method, and Dialog Computer Program, which streamline interactions between users and machines for more seamless conversations.

Career Highlights:

With an impressive portfolio of 20 patents, Takashi Sumiyoshi has made waves in the tech industry with his innovations. His expertise lies in creating systems that enhance problem-solving processes and improve communication between humans and machines.

Collaborations:

Throughout his career, Sumiyoshi has collaborated with industry giants such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His teamwork with colleagues like Shoji Yamamoto and Masahito Togami has led to groundbreaking advancements in technology.

Conclusion:

In conclusion, Takashi Sumiyoshi stands as a pioneering figure in the realm of inventors, with a strong focus on developing cutting-edge solutions to pressing challenges. His contributions have left an indelible mark on the innovation landscape, shaping the way we interact with technology in the modern world.

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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