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Kioritz Corporation

USPTO Granted Patents = 435

% Expired Patents = 10.8

Forward Citations = 4,488

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202 inventors (with patents filed for the assignee):

Akira Nagashima (96 out of 147 patents)

Giichi Iida (33 out of 33 patents)

Toshio Taomo (27 out of 27 patents)

4. Fumihiko Aiyama (25 out of 26 patents)

5. Fujio Kobayashi (23 out of 34 patents)

6. Tadashige Kondo (18 out of 18 patents)

7. Tsuneo Araki (17 out of 17 patents)

8. Hisashi Inaga (17 out of 18 patents)

9. Hisato Ohsawa (13 out of 15 patents)

10. Junichi Akaike (13 out of 15 patents)

11. Yoshikiyo Kamata (13 out of 13 patents)

12. Hirofumi Yamami (13 out of 13 patents)

13. Noboru Nagai (12 out of 12 patents)

14. Yoshiaki Hironaka (12 out of 15 patents)

15. Isao Masuda (12 out of 22 patents)

Core Competencies:

Internal Combustion Engine

Two-Stroke Engine

Portable Power Machine

Power Blower

Centrifugal Blower Fan

Vibration-Absorbing Coupler

Starter

Cooling System

Lubricating Method

Air Cleaner

Chain Saw

Reciprocating Pump

435 patents: Sort by Forward Citations

1. 7594334 - Vibration-absorbing coupler and portable brush cutter provided with the vibration-absorbing coupler (2009-09-29),

2. 7520690 - Part positioner and part pressing member (2009-04-21),

3. 7520253 - Two-stroke internal combustion engine (2009-04-21),

4. 7363886 - Power unit (2008-04-29),

5. 7322322 - Stratified-scavenging two-stroke internal combustion engine (2008-01-29),

6. 7322114 - Saw chain tensioning mechanism (2008-01-29),

7. 7255072 - Two-stroke internal combustion engine (2007-08-14),

8. 7243622 - Two-stroke internal combustion engine (2007-07-17),

9. 7182059 - Oil pump mechanism for lubricating saw chain (2007-02-27),

10. 7165597 - Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core (2007-01-23),

11. 7101295 - Power transmission device and portable power working machine provided with the same (2006-09-05),

12. 7086837 - Centrifugal blower fan (2006-08-08),

13. 7063061 - Liquid quantity visual confirmation device and reservoir-forming member (2006-06-20),

14. D522532 - Internal combustion engine (2006-06-06),

15. 7055213 - Power blower having a debris-catching cover (2006-06-06),

Kioritz Corporation is a global company specializing in the development and manufacturing of innovative outdoor power equipment. With a rich history spanning over several decades, Kioritz has established itself as a leader in the industry, offering high-quality products that meet the needs of both professionals and homeowners. Their diverse product range includes chainsaws, trimmers, brush cutters, blowers, and more. Committed to sustainability, Kioritz incorporates advanced technology and eco-friendly practices in their manufacturing processes to reduce environmental impact. Visit their website to explore their extensive product lineup and learn more about their mission of delivering reliable and sustainable power equipment.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

435 Patents

#208 in Tokyo

#421 in Japan

#2,172 in the World

Kioritz Corporation

Forward Citations = 4,488

202 inventors:

Akira Nagashima (96 out of 147 patents)

Giichi Iida (33 out of 33 patents)

Toshio Taomo (27 out of 27 patents)

4. Fumihiko Aiyama (25 out of 26 patents)

5. Fujio Kobayashi (23 out of 34 patents)

Please report any incorrect information to [email protected]

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