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For the Inventor, By the Inventor

Kanuma, Japan

Nakanishi Inc.


USPTO Granted Patents = 109

% Expired Patents = 16.5



Trademarks = 42

Forward Citations = 888

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51 inventors (with patents filed for the assignee):

goldMedal Takeshi Kagawa (21 out of 21 patents)

silverMedal Takasuke Nakanishi (11 out of 22 patents)

bronzeMedal Eiichi Nakanishi (10 out of 10 patents)

4.  Shinichi Tanaka (8 out of 9 patents)

5.  Toshinari Sanga (8 out of 8 patents)

6.  Masaki Nakagawa (5 out of 5 patents)

7.  Tetsuji Suzuki (5 out of 5 patents)

8.  Kiyoshi Kawakubo (5 out of 5 patents)

9.  Masanori Mizunuma (5 out of 7 patents)

10.  Daniele Giovanni Ongaro (4 out of 11 patents)

11.  Takao Kimura (4 out of 4 patents)

12.  Akito Nakamura (3 out of 3 patents)

13.  Keita Yokochi (3 out of 3 patents)

14.  Shinichiro Muto (3 out of 3 patents)

15.  Tomohiro Sakanushi (3 out of 3 patents)


Core Competencies:
Dental Handpiece
Controller
Ultrasonic Instrument
Sterilizer
Electric Motor
Scaler Tip
Foot Control
Autoclave
Maintenance System
Light-Emitting Device
Jawbone Cutting
Cleaning Apparatus

109 patents:

1. D1131795 - Surgical drill (2026-06-23),
2. D1131785 - Dental syringe (2026-06-23),
3. 12453618 - Abnormality determination device and abnormality determination method for dental handpiece (2025-10-28),
4. 12285306 - Dental handpiece and dental handpiece with cleaning adapter (2025-04-29),
5. 11806024 - Surgical bur (2023-11-07),
6. 11413014 - Transducer cover, method for forming the cover, and ultrasonic medical instrument with the cover (2022-08-16),
7. D924409 - Controller for handpiece (2021-07-06),
8. D916292 - Foot control for dental equipment (2021-04-13),
9. D914879 - Dental handpiece (2021-03-30),
10. D908888 - Controller for dental equipment (2021-01-26),
11. D908887 - Controller for dental equipment (2021-01-26),
12. D904614 - Dental handpiece (2020-12-08),
13. D895801 - Tip for ultrasonic handpiece for oral surgery (2020-09-08),
14. 10758318 - Electric motor and dental device (2020-09-01),
15. D890357 - Sterilizer (2020-07-14),
Nakanishi Inc., headquartered in Kanuma, Japan, specializes in the development and manufacturing of advanced dental handpieces and related technologies. The company focuses on a range of core technologies including ultrasonic instruments, sterilizers, electric motors, and scaler tips, catering to the needs of dental professionals. Nakanishi is committed to innovation in dental equipment, enhancing precision and efficiency in dental procedures while ensuring high standards of hygiene and performance.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

109 Patents

#1 in Kanuma

#1,065 in Japan

#7,218 in the World

Kanuma, JP
Kanuma, Japan

Nakanishi Inc.

Forward Citations = 888

51 inventors:

goldMedal Takeshi Kagawa (21 out of 21 patents)

silverMedal Takasuke Nakanishi (11 out of 22 patents)

bronzeMedal Eiichi Nakanishi (10 out of 10 patents)

4.  Shinichi Tanaka (8 out of 9 patents)

5.  Toshinari Sanga (8 out of 8 patents)

Please report any incorrect information to [email protected]
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