Katsumi Kobayashi

This inventor holds 63 USPTO granted patents and 1 published patent application, plus 2 CIPO patents and 17 EPO patents, primarily in Photoelectric Conversion (CPC class C09B). Top assignees: Fuji Photo Film Company, Limited, Fujifilm Corporation, Socionext Inc.. Active years: 1989-2024.

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

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

USPTO Granted Patents = 63 (Patent Applications = 1)

% Patents Active = 69.8

CIPO Patents = 2

EPO Patents = 17 (Patent Applications = 22)

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 260(Granted Patents)

Forward Citations (Not Self Cited) = 245(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Sakata, JP (2006)
Ashigara, JP (1999 - 2008)
Minami-ashigara, JP (2007 - 2009)
Odawara, JP (2013 - 2016)
Kanagawa, JP (1992 - 2019)
Ashigarakami-gun, JP (2015 - 2019)
Yokohama, JP (1989 - 2024)

Company Filing History:

19 out of 16,458

Fuji Photo Film Company, Limited

Ntt Mobile Communications Network, Inc.

Ohkawara Kakohki Co., Ltd.

patents

7. 1 out of 5,300

Nippon Telegraph and Telephone Corporation

Sharp Kabushiki Kaisha Corporation

patents

where one patent can have more than one assignee

Years Active: 1989-2024

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Areas of Expertise:

Photoelectric Conversion Element

Dye-Sensitized Solar Cell

Metal Complex Dye

Acoustic System

Sound Signal Processing

In-Vehicle Device

Noise Filter

Solar Cell

Infrared Absorbing Composition

Hair-Dyeing Agent

Silver Halide Photographic Material

Azo Dye Compound

63 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11975657 - Vehicle-mounted device (2024-05-07),

2. 11904940 - Steering apparatus and sound output system (2024-02-20),

3. 11785377 - Display apparatus and acoustic apparatus (2023-10-10),

4. 11310621 - Signal processing device and signal processing method for performing sound localization processing (2022-04-19),

5. 11252501 - In-vehicle device and audio output system (2022-02-15),

6. 11212634 - Sound signal processing device, sound adjustment method, and medium (2021-12-28),

7. 11128975 - Acoustic system and acoustic control device (2021-09-21),

8. 10587940 - Acoustic device and mobile object (2020-03-10),

9. 10460879 - Photoelectric conversion element, dye-sensitized solar cell, metal complex dye, dye solution, dye-adsorbed electrode, and method for producing dye-sensitized solar cell (2019-10-29),

10. 10418186 - Photoelectric conversion element, solar cell and composition (2019-09-17),

11. 10403829 - Photoelectric conversion element, solar cell using the same, and method for manufacturing photoelectric conversion element (2019-09-03),

12. 10256048 - Photoelectric conversion element and dye-sensitized solar cell (2019-04-09),

13. 9953768 - Metal-complex dye, photoelectric conversion element, dye-sensitized solar cell, and dye solution containing metal-complex dye (2018-04-24),

14. 9947482 - Photoelectric conversion element, dye-sensitized solar cell, and metal complex dye used in same (2018-04-17),

15. 9614165 - Photoelectric conversion element, dye-sensitized solar cell, metal complex dye, dye solution, dye-adsorbed electrode and method of producing dye-sensitized solar cell (2017-04-04),

Title: **Katsumi Kobayashi: A Pioneer in Vehicle Technology and Innovation**

Introduction

Katsumi Kobayashi, based in Kanagawa, Japan, is a distinguished inventor renowned for his significant contributions to vehicle technology, holding an impressive total of 63 patents. His innovative designs illustrate a commitment to enhancing user experience and functionality in modern vehicles.

Latest Patents

Among his latest patents is a **Vehicle-mounted device**, which encompasses a switch unit operable by an occupant, a speaker unit positioned away from the occupant, an air chamber, and a substrate featuring multiple openings. This invention reflects a thoughtful approach towards enhancing occupant interaction within a vehicle. Another noteworthy patent is the **Steering apparatus and sound output system**, which features a rim member, a center member connected to a steering shaft, a sound output apparatus, and a rim chamber unit. This invention aims to improve the auditory experience of drivers, showcasing Kobayashi's ingenuity in merging sound technology with steering systems.

Career Highlights

Katsumi Kobayashi’s career is marked by his tenure at prominent companies such as Fujifilm Corporation and Fuji Photo Film Company, Limited. His work in these companies emphasizes his role in advancing technology in the automotive and photographic industries, paving the way for innovative solutions and products that address modern challenges.

Collaborations

Throughout his career, Kobayashi has collaborated with notable professionals, including Yukio Tani and Takanori Hioki. These partnerships have undoubtedly enriched his work, fostering an environment of creative synergy that has led to groundbreaking inventions in the automotive sector.

Conclusion

Katsumi Kobayashi stands as a luminary in the field of vehicle technology, with a portfolio of patents that reflect his innovative spirit. His work continues to inspire future generations of inventors, demonstrating the profound impact of creativity and collaboration in fields driven by technological advancement.

Profile summary based on public USPTO records.