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For the Inventor, By the Inventor

Kanagawa, Japan

Hiroyuki Ishikawa

This inventor holds 10 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Fujifilm Corporation, Kao Corporation, Kyodo Yushi Co., Ltd.. Active years: 2016-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Ishikawa. Retrieved from https://idiyas.com/inventor/hiroyuki-ishikawa-u7gijco0

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

USPTO Granted Patents = 10 

% Patents Active = 100.0


Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Location History:

  • Kanagawa-ken, JP (2018)
  • Kanagawa, JP (2016 - 2022)

Company Filing History:

goldMedal9 out of 16,980 
 
Fujifilm Corporation
 patents
silverMedal1 out of 3,678 
 
Kao Corporation
 patents
bronzeMedal1 out of 89 
 
Kyodo Yushi Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 2016-2022

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10 patents (USPTO):Explore Patents
1. 11441091 - Grease base oil and grease composition containing said grease base oil (2022-09-13),
2. 11072741 - Optically anisotropic layer, method for producing the optically anisotropic layer, a laminate, polarizing plate, display device, liquid crystal compound, method for producing the liquid crystal compound, and carboxylic acid compound (2021-07-27),
3. 10114160 - Polarizing plate, liquid crystal display device including same, and method for producing polarizing plate (2018-10-30),
4. 10059877 - Optically anisotropic layer, method for producing the optically anisotropic layer, a laminate, polarizing plate, display device, liquid crystal compound, method for producing the liquid crystal compound, and carboxylic acid compound (2018-08-28),
5. 10007042 - Composition, light reflecting film, luminance-improving film, backlight unit, and liquid crystal display device (2018-06-26),
6. 10001674 - Brightness enhancement film, optical sheet member, and liquid crystal display device (2018-06-19),
7. 9829615 - Luminance-enhancing film, optical sheet member, and liquid crystal display device (2017-11-28),
8. 9778509 - Optical conversion member, backlight unit, and liquid crystal display device (2017-10-03),
9. 9341882 - Laminate, polarizing plate, liquid crystal display device, and method of manufacturing polarizing plate (2016-05-17),
10. 9256099 - Polarizer, polarizing plate using the same, liquid crystal display device, and method of manufacturing polarizing plate (2016-02-09),

Title: Hiroyuki Ishikawa: Innovator in Grease and Liquid Crystal Technologies

Introduction

Hiroyuki Ishikawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the fields of grease base oils and liquid crystal technologies. With a total of 10 patents to his name, Ishikawa's work has had a considerable impact on various industries.

Latest Patents

One of his latest patents involves a grease base oil and grease composition that contains condensation esters of alcohols and carboxylic acids. This innovative grease base oil is designed to have heat resistance and low-temperature storage ability. Another notable patent focuses on an optically anisotropic layer formed by a liquid crystal compound, which is essential for the production of display devices and polarizing plates.

Career Highlights

Ishikawa has worked with notable companies such as Fujifilm Corporation and Kyodo Yushi Co., Ltd. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in material science and engineering.

Collaborations

Throughout his career, Ishikawa has collaborated with talented individuals, including Mayumi Nojiri and Yu Naito. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Hiroyuki Ishikawa's contributions to grease and liquid crystal technologies highlight his role as a leading inventor in Japan. His patents reflect a commitment to innovation and excellence in his 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]
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