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For the Inventor, By the Inventor

Ome, Japan

Keizo Kawakita

This inventor holds 24 USPTO granted patents, primarily in Semiconductor Devices. Top assignees: Hitachi, Ltd., Texas Instruments Corporation, Other. Active years: 1996-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Kawakita. Retrieved from https://idiyas.com/inventor/keizo-kawakita

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

USPTO Granted Patents = 24

% Patents Active = 95.8

Average Co-Inventor Count = 10.4

ph-index = 10

Forward Citations = 392(Granted Patents)


Location History:

  • Ohme, JP (1999 - 2000)
  • Ome, JP (1996 - 2006)

Company Filing History:

goldMedal20 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal9 out of 29,901 
 
Texas Instruments Corporation
 patents
bronzeMedal2 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1996-2006

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Areas of Expertise:
Integrated Circuit
Semiconductor
Memory Device
Manufacturing Method
Capacitor
Stray Capacity
Conductive Film
Screen Stacked Cell
Bit Line
Focus Margin
Fabrication
Device Production
24 patents (USPTO):Explore Patents
1. 7119443 - Semiconductor integrated circuit device having a conductive film which contains metal atoms bondable to a halogen element (2006-10-10),
2. 7042038 - Semiconductor integrated circuit device and manufacturing method thereof (2006-05-09),
3. 6969649 - Method of manufacturing semiconductor integrated circuit devices having a memory device with a reduced bit line stray capacity and such semiconductor integrated circuit devices (2005-11-29),
4. 6853081 - Method for fabricating semiconductor integrated circuit (2005-02-08),
5. 6753219 - Method of manufacturing semiconductor integrated circuit devices having a memory device with a reduced bit line stray capacity and such semiconductor integrated circuit devices (2004-06-22),
6. 6649956 - Semiconductor integrated circuit device and manufacturing method thereof (2003-11-18),
7. 6638811 - Method of manufacturing a semiconductor integrated circuit device having a capacitor (2003-10-28),
8. 6605530 - Method for fabricating semiconductor integrated circuit (2003-08-12),
9. 6492730 - Method for fabricating semiconductor integrated circuit (2002-12-10),
10. 6483136 - Semiconductor integrated circuit and method of fabricating the same (2002-11-19),
11. 6399438 - Method of manufacturing semiconductor integrated circuit device having a capacitor (2002-06-04),
12. 6372554 - Semiconductor integrated circuit device and method for production of the same (2002-04-16),
13. 6258649 - Semiconductor integrated circuit device and method of manufacturing the same (2001-07-10),
14. 6215144 - Semiconductor integrated circuit device, and method of manufacturing the same (2001-04-10),
15. 6077735 - Method of manufacturing semiconductor device (2000-06-20),

Title: Innovations of Keizo Kawakita in Semiconductor Technology

Introduction

Keizo Kawakita is a notable inventor based in Ome, Japan, recognized for his significant contributions to semiconductor technology. With a remarkable repertoire of 24 patents, Kawakita has played a pivotal role in advancing the complexities of integrated circuit devices.

Latest Patents

Among his latest innovations, Kawakita has developed a semiconductor integrated circuit device featuring a conductive film that contains metal atoms bondable to a halogen element. This invention involves a meticulous manufacturing process whereby a titanium nitride (TiN) film and a tungsten (W) film are deposited on a silicon oxide film, including the interior of a via-hole, using the chemical vapor deposition (CVD) method. Following this, both films are etched back to leave the desired structure within the via-hole, ultimately forming a plug. Additionally, he created a device with a metal insulator semiconductor field effect transistor (MISFET) formed within an active region for the selection of a DRAM memory cell. This configuration boasts an island-like pattern on the principal surface of a semiconductor substrate, optimizing the device's performance and efficiency.

Career Highlights

Throughout his career, Keizo Kawakita has worked with leading technology firms such as Hitachi, Ltd. and Texas Instruments Corporation. His tenure at these companies has allowed him to refine his expertise in semiconductor design and fabrication, while also significantly contributing to the evolution of memory technology.

Collaborations

Kawakita has collaborated with esteemed coworkers including Yoshitaka Tadaki and Hideo Aoki. These partnerships have further propelled innovation and development efforts within the semiconductor industry, contributing to successful patent applications and pioneering technological advancements.

Conclusion

In summary, Keizo Kawakita's dedication to semiconductor innovation is evident through his numerous patents and collaborations. His contributions to the field continue to impact the landscape of integrated circuit technology, making him a prominent figure among inventors in the semiconductor domain.

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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