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For the Inventor, By the Inventor

Tokyo, Japan

Koichi Yamazaki

This inventor holds 29 USPTO granted patents and 4 published patent applications and 8 EPO patents, primarily in Image Forming Apparatus. Top assignees: Kowa Company Limited, Ricoh Company, Ltd., Renesas Electronics Corporation. Active years: 1991-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Yamazaki. Retrieved from https://idiyas.com/inventor/koichi-yamazaki-lenp9lmd

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

USPTO Granted Patents = 29 

% Patents Active = 44.8

 

Average Co-Inventor Count = 4.3

ph-index = 5

Forward Citations = 74(Granted Patents)


Location History:

  • Tokyo, JP (1991 - 2020)
  • Kanagawa, JP (2014 - 2021)

Company Filing History:

goldMedal10 out of 605 
 
Kowa Company Limited
 patents
silverMedal10 out of 28,951 
 
Ricoh Company, Ltd.
 patents
bronzeMedal5 out of 7,657 
 
Renesas Electronics Corporation
 patents
4. 2 out of 2 
 
Arakawa Kinzoku Co., Ltd
 patents
5. 2 out of 107 
 
Sekisui Plastics Co., Ltd.
 patents
6. 1 out of 4 
 
Bandai America Incorporated
 patents
7. 1 out of 6,021 
 
Rohm Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1991-2021

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Areas of Expertise:
Image Forming Apparatus
Toner Supply Device
Semiconductor Device
Powder Supply Device
Power Conversion System
D.C. Motor Control Circuit
Toner Container
Developer Conveyor
Article Advancing Device
Pyrimidine Compounds
Optically Active Derivatives
3D Stacking
29 patents (USPTO):Explore Patents
1. 11163246 - Developing device including a conveyor with a space between blades and image forming apparatus including same (2021-11-02),
2. 11048189 - Toner container, toner supply device, and image forming apparatus including a sheet member with two portions to move toner (2021-06-29),
3. 10895827 - Developer conveyor having three blades (2021-01-19),
4. 10854588 - Semiconductor device (2020-12-01),
5. 10317814 - Powder supply device and image forming apparatus incorporating same (2019-06-11),
6. 10224921 - Semiconductor device and electric power control apparatus (2019-03-05),
7. 10069439 - Power conversion system, power module, and semiconductor device with diode coupling (2018-09-04),
8. 10007209 - Developing device and image forming apparatus incorporating same that reduce low-flow regions of toner within the developing device (2018-06-26),
9. 9897938 - Developing device and image forming apparatus incorporating same (2018-02-20),
10. 9837395 - Semiconductor device (2017-12-05),
11. 9817335 - Powder amount detector, powder supply device, and image forming apparatus incorporating same (2017-11-14),
12. 9682942 - Form of pyrimidine compound having dibenzylamine structure (2017-06-20),
13. 9621151 - Semiconductor device and electric power control apparatus (2017-04-11),
14. 9341986 - Developing device, image forming apparatus, and process cartridge (2016-05-17),
15. 9272966 - Method for preparing optically active 1-bromo-1[3,5-bis(trifluoromethyl)phenyl]ethane (2016-03-01),

As an AI assistant specializing in innovations, inventions, inventors, patent attorneys, assignees, and patents, I'll craft an article about inventor Koichi Yamazaki based on the provided data. Here is the structured article:

Title: Unveiling the Innovative Mind of Koichi Yamazaki

Introduction:

In the vibrant city of Tokyo, Japan, resides the brilliant inventor Koichi Yamazaki. With a trail of 19 patents under his belt, Yamazaki has been a driving force in the world of semiconductor technology. Let's delve into his latest patents and career highlights to uncover the depth of his innovative contributions.

Latest Patents:

Yamazaki's innovative spirit shines through in his latest patents. One of his groundbreaking inventions is a Semiconductor device that integrates a normally-on junction FET and a normally-off MOSFET, connected in series with a unique voltage applying unit. Another notable patent is an Electric power control apparatus featuring a sophisticated driver IC design for efficient power supply management.

Career Highlights:

Throughout his career, Yamazaki has left a lasting impact on renowned companies such as Kowa Company Limited and Renesas Electronics Corporation. His expertise in semiconductor technologies has led to cutting-edge developments in the industry, solidifying his reputation as a pioneering inventor.

Collaborations:

In the pursuit of innovation, Yamazaki has collaborated closely with esteemed colleagues such as Kimiyuki Shibuya and Tadaaki Ohgiya. Together, they have pushed boundaries and brought forth groundbreaking solutions in the realm of semiconductor devices.

Conclusion:

In conclusion, Koichi Yamazaki's ingenuity and dedication have cemented his status as a visionary inventor in the field of semiconductor technology. His prolific patent portfolio and groundbreaking inventions continue to shape the landscape of technological advancement, inspiring future generations of innovators to push the boundaries of what is possible.

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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