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For the Inventor, By the Inventor

Ichikawa, Japan

Takeshi Watanabe

This inventor holds 92 USPTO granted patents and 3 published patent applications and 1 EPO patent, primarily in Image Formation Technology (CPC class G03G1-510). Top assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba, Hitachi, Ltd.. Active years: 1976-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Watanabe. Retrieved from https://idiyas.com/inventor/takeshi-watanabe-7yex0zk4

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

Calculating rank
USPTO Granted Patents = 92 

% Patents Active = 57.6


Average Co-Inventor Count = 2.3

ph-index = 10

Forward Citations = 598(Granted Patents)

Forward Citations (Not Self Cited) = 563(Dec 10, 2025)


Inventors with similar research interests:


    Location History:

    • Fuji, JA (1976)
    • Fuji, JP (1979)
    • Fuji both of, JP (1980)
    • Numazu, JP (1989 - 2005)
    • Chiba-ken, JP (1999 - 2005)
    • Hitachi, JP (2005 - 2008)
    • Yokohama, JP (1981 - 2012)
    • Ichikawa, JP (1996 - 2012)
    • Kanagawa-ken, JP (2007 - 2015)
    • Tagata Shizuoka, JP (2022)
    • Yokohama Kanagawa, JP (2016 - 2024)

    Company Filing History:

    goldMedal62 out of 6,293 
     
    Toshiba Tec Kabushiki Kaisha
     patents
    silverMedal59 out of 53,315 
     
    Kabushiki Kaisha Toshiba
     patents
    bronzeMedal5 out of 42,752 
     
    Hitachi, Ltd.
     patents
    4. 5 out of 180 
     
    Kokusan Denki Co., Ltd.
     patents
    5. 3 out of 166,483 
     
    International Business Machines Corporation
     patents
    6. 1 out of 2,433 
     
    Mitsubishi Chemical Corporation
     patents
    7. 1 out of 1 
     
    Ntt Data Communications System Corporation
     patent
    8. 1 out of 895 
     
    Riken Corporation
     patents
    9. 1 out of 746 
     
    Toshiba Kikai Kabushiki Kaisha
     patents
    10. 4 out of 834,659 
    Other
     patents
    where one patent can have more than one assignee

    Years Active: 1976-2025

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    Areas of Expertise:
    Image Forming Apparatus
    Electrophotographic Process
    Toner Image Transfer
    Cleaning Device
    CMOS Device Fabrication
    Charging Device
    Artificial Lymph Node
    Toner Recycling
    Print Head
    Intermediate Transfer Belt
    Metal Insulator Semiconductor
    Symbol Reading Device
    92 patents (USPTO):Explore Patents
    1. 12405548 - Optical device (2025-09-02),
    2. 11966173 - Image forming apparatus (2024-04-23),
    3. 11494580 - Symbol reading device, symbol reading method, and symbol reading system (2022-11-08),
    4. 11194265 - Image forming apparatus (2021-12-07),
    5. 11054760 - Image forming apparatus (2021-07-06),
    6. 11036158 - Image forming apparatus which controls time interval between first and second image data based on print head emission time (2021-06-15),
    7. 10802416 - Print head and image forming apparatus (2020-10-13),
    8. 10545436 - Image forming system having multiple image forming units (2020-01-28),
    9. 10527978 - Image forming apparatus and image forming method for forming toner image using image data or predetermined shape (2020-01-07),
    10. 10197963 - Image forming apparatus (2019-02-05),
    11. 10114592 - Image forming system and image forming apparatus (2018-10-30),
    12. 9952546 - Image forming apparatus (2018-04-24),
    13. 9436120 - Image forming apparatus and method for forming a streakless image by setting a potential of a developing unit (2016-09-06),
    14. 9075337 - Image forming apparatus and method using electrophotographic two-component development (2015-07-07),
    15. 8805218 - Image forming apparatus, toner image transfer and fixing method, and computer-readable recording medium having recorded thereon toner image transfer and fixing program (2014-08-12),

    Title: Takeshi Watanabe: A Pioneer in Image Forming and Symbol Reading Technology

    Introduction

    Takeshi Watanabe is an esteemed inventor based in Ichikawa, Japan. With an impressive portfolio of 91 patents, he has made significant contributions to the fields of image forming equipment and symbol reading devices. His innovative work continues to influence technology in various industries.

    Latest Patents

    Takeshi Watanabe's latest patents showcase his ingenuity and focus on improving technology. One notable invention is an image forming apparatus equipped with an exposure device featuring multiple light emitting points. This apparatus includes a photoconductor and a processor that precisely controls the light emission from each point based on the desired image. The processor further optimizes exposure conditions by calculating correction coefficients for light output, enhancing image quality.

    Another noteworthy patent is a symbol reading device, which consists of several reading units and a processor. This device efficiently reads symbols on items moving along a conveyor path. The processor acquires and stores symbol information, enabling it to identify and substitute reading units effectively, which leads to improved power efficiency by placing unused units in a power-saving state.

    Career Highlights

    Throughout his career, Takeshi Watanabe has worked with reputable companies such as Toshiba Tec Corporation and Toshiba Corporation. His innovative mindset and technical expertise have led to the development of cutting-edge technologies in these organizations.

    Collaborations

    Takeshi has collaborated with other talented inventors, including Masashi Takahashi and Shoko Shimmura. Together, they have contributed to advancements in technology, leveraging each other's expertise to create innovative solutions that meet the demands of modern industry.

    Conclusion

    Takeshi Watanabe's remarkable accomplishments in innovation and invention have established him as a leading figure in his field. His patents not only reflect his expertise but also signify the ongoing advancements in image forming and symbol reading technology. As he continues to push the boundaries of innovation, his work remains an important part of technological progress.

    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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