Keiji Ohta

This inventor holds 34 USPTO granted patents and 4 published patent applications and 5 EPO patents, primarily in Card Processing Technology. Top assignees: Nidec Sankyo Corporation, Nidec Instruments Corporation. Active years: 2008-2026.

USPTO Granted Patents = 34 (Patent Applications = 4)

% Patents Active = 50.0

EPO Patents = 5

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 24(Granted Patents)

Location History:

Suwa-gun Nagano, JP (2020)
Nagano, JP (2008 - 2024)

Company Filing History:

32 out of 732

Nidec Sankyo Corporation

patents

2 out of 45

Nidec Instruments Corporation

patents

Years Active: 2008-2026

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Areas of Expertise:

Card Issuing Device

Card Reader

Card Processing Device

Card Transport Unit

Card Elevating Device

Ink Ribbon Cartridge

Label Sticking Apparatus

Medium Processing Apparatus

Card Conveying Mechanism

Information Reading Device

Card Collection Mechanism

Magnetic Information Medium

34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12612282 - Card issuing device (2026-04-28),

2. 12530547 - Card insertion part and card reader (2026-01-20),

3. 12242907 - Card transport unit (2025-03-04),

4. 11995509 - Card processing device and cover member (2024-05-28),

5. 11900186 - Card reader (2024-02-13),

6. 11724903 - Card processing device (2023-08-15),

7. 11186096 - Card-issuing device (2021-11-30),

8. 10682867 - Card processing device (2020-06-16),

9. 10668360 - Card collection storage and card processing device (2020-06-02),

10. 10635953 - Card feed-out device (2020-04-28),

11. 10586134 - Card issuing device (2020-03-10),

12. 10552726 - Card-type medium counting mechanism, card-type medium housing device, and card housing device (2020-02-04),

13. 9751707 - Card conveying mechanism and card issuing device (2017-09-05),

14. 9656478 - Ink ribbon cassette, ink ribbon cartridge, printing device and control method for printing device (2017-05-23),

15. 9498996 - Ink ribbon cassette, ink ribbon cartridge, printing device and control method for printing device (2016-11-22),

Title: Keiji Ohta: Pioneering Inventor from Nagano, JP

Introduction: Keiji Ohta is a renowned inventor hailing from Nagano, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Keiji Ohta holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Keiji Ohta has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Keiji Ohta has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Keiji Ohta's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a trailblazer in the world of inventors.