Kyoto, Japan

Kiyotaka Umemoto

This inventor holds 34 USPTO granted patents and 3 published patent applications, primarily in Semiconductor Devices. Top assignee: Rohm Co., Ltd.. Active years: 2002-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyotaka Umemoto. Retrieved from https://idiyas.com/inventor/kiyotaka-umemoto

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

USPTO Granted Patents = 34 

% Patents Active = 91.2

Average Co-Inventor Count = 1.6

ph-index = 8

Forward Citations = 167(Granted Patents)


Company Filing History:


Years Active: 2002-2021

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Areas of Expertise:
Semiconductor Device
DC/DC Converter
Power Supply Apparatus
Switching Regulator
Constant Voltage Generating Circuit
Synchronous Rectification
Electric Power Supply Unit
Motor Driving Apparatus
Switching Power Supply Unit
Control Circuit
Step-Down Switching Regulator
Multiphase DC/DC Converter
34 patents (USPTO):Explore Patents

Title: Kiyotaka Umemoto: Innovator in Semiconductor Technology

Introduction

Kiyotaka Umemoto, hailing from Kyoto, Japan, is a distinguished inventor with an impressive portfolio of 34 patents in the semiconductor technology domain. His innovations reflect a deep commitment to advancing the capabilities of semiconductor devices.

Latest Patents

Among his latest patents are two noteworthy semiconductor devices. The first invention describes a semiconductor device that features a first semiconductor chip and a second semiconductor chip, with distinct structures designed to enhance functionality. The first semiconductor chip incorporates a first MOSFET and a control circuit, while the second chip includes a different type of MOSFET, showcasing Umemoto's innovative approach to semiconductor design.

In another patent, Umemoto outlines a semiconductor device that includes a semiconductor chip with an element formed in a designated region. This design allows for a through-via that penetrates from the front surface to the rear surface of the semiconductor substrate, creating a conductive path while circumventing the element forming region. Additionally, circuit components are strategically mounted to improve the overall efficiency of the device.

Career Highlights

Kiyotaka Umemoto is currently employed at Rohm Co., Ltd., where he applies his expertise to a variety of cutting-edge projects focused on semiconductor development. His work is pivotal in driving advancements in the industry, making him a valuable asset to the company.

Collaborations

Umemoto has collaborated with several talented individuals in his field, including colleagues Ko Takemura and Masaru Sakai. Together, they contribute to research and development initiatives that push the boundaries of semiconductor technology.

Conclusion

Kiyotaka Umemoto stands out as a significant figure in the field of semiconductor innovation. His contributions, as reflected in his extensive patent portfolio, not only exemplify his creative genius but also underscore the ongoing evolution of technology in the semiconductor industry. As advancements continue to unfold, Umemoto's work remains influential and inspiring.

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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