logo

For the Inventor, By the Inventor

Mobara, Japan

Katsumi Kobara

This inventor holds 13 USPTO granted patents and 1 published patent application. Top assignee: Hitachi, Ltd.. Active years: 1988-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Kobara. Retrieved from https://idiyas.com/inventor/katsumi-kobara

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

USPTO Granted Patents = 13 

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 7

Forward Citations = 227(Granted Patents)


Company Filing History:

goldMedal13 out of 42,731 
 
Hitachi, Ltd.
 patents

Years Active: 1988-2006

Loading Chart...
13 patents (USPTO):Explore Patents
1. 7142278 - Method for producing a liquid crystal display apparatus (2006-11-28),
2. 6700639 - Liquid crystal display apparatus and production method (2004-03-02),
3. RE37183 - Image display panel having antistatic film with transparent and electroconductive properties and process for processing same (2001-05-22),
4. 6140757 - Color cathode-ray tube (CRT) and method of producing the same (2000-10-31),
5. 5880557 - Transparent plate, process for the production thereof and their applied (1999-03-09),
6. 5742118 - Ultrafine particle film, process for producing the same, transparent (1998-04-21),
7. 5707685 - Process for forming ultrafine particle film, transparent plate and image (1998-01-13),
8. 5665422 - Process for formation of an ultra fine particle film (1997-09-09),
9. 5612128 - Ultra fine particles having uneven surfaces and treatment plate using (1997-03-18),
10. 5291097 - Cathode-ray tube (1994-03-01),
11. 5122709 - Antistatic cathode ray tube with lobe like projections and high gloss (1992-06-16),
12. 4945282 - Image display panel having antistatic film with transparent and (1990-07-31),
13. 4723091 - Technique for preventing reflections in a cathode ray tube (1988-02-02),

Title: Innovations in Liquid Crystal Display Technology by Katsumi Kobara

Introduction

Katsumi Kobara, an esteemed inventor based in Mobara, Japan, has made significant contributions to the field of liquid crystal display (LCD) technology. With a remarkable portfolio of 13 patents, his work has continued to shape advancements in the production and functionality of LCD apparatuses.

Latest Patents

Kobara's latest patents showcase innovative methods for enhancing the production of liquid crystal display apparatuses. One notable patent details a method for producing an LCD apparatus by utilizing a glass sheet with a specially formed scribe groove. This technique involves cooling the scribe groove and its surroundings while simultaneously heating the areas on both sides. This controlled temperature variation allows for the extension of the scribe groove to the backside of the glass sheet, ensuring a uniform distribution of residual stress across the cutting area. The methodology aims to minimize deformation and impact during the cutting process, effectively reducing instances of peeling or cracking, especially in brittle materials like glass and ceramics.

Another significant patent outlines a similar method focused on improving the cutting process of thin sheets of brittle materials such as glass and ceramics by extending the scribe groove without causing damage. This innovation not only enhances production efficiency but also reinforces the integrity of the materials being processed.

Career Highlights

Katsumi Kobara's career has been distinguished by his affiliation with Hitachi, Ltd., where he has dedicated his efforts to revolutionizing LCD technology. His contributions have placed him at the forefront of innovation in this dynamic sector, demonstrating a commitment to advancing manufacturing techniques that ensure higher quality and efficiency in liquid crystal displays.

Collaborations

Throughout his career, Kobara has worked alongside talented colleagues, including Hiromitsu Kawamura and Takao Kawamura. Their collaborative efforts have furthered the impact of their inventions, enabling the development of cutting-edge technologies that continue to define the industry.

Conclusion

Katsumi Kobara stands out as a prominent inventor in the realm of liquid crystal display technology. His pioneering work and patented methodologies not only exemplify his ingenuity but also contribute significantly to the future of display technology. As advancements in LCD production evolve, the influence of Kobara's innovations will undoubtedly leave a lasting legacy within the field.

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]
Loading…