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For the Inventor, By the Inventor

Tokyo, Japan

Ito En, Ltd.

Calculating rank
USPTO Granted Patents = 28



Trademarks = 16

Forward Citations = 98

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63 inventors (with patents filed for the assignee):

goldMedal Masami Sasame (9 out of 9 patents)

silverMedal Hitoshi Kinugasa (8 out of 8 patents)

bronzeMedal Takanobu Takihara (7 out of 7 patents)

4.  Takami Kakuda (7 out of 7 patents)

5.  Kazunori Okanoya (6 out of 6 patents)

6.  Kenji Shimaoka (6 out of 6 patents)

7.  Hitoshi Niino (4 out of 4 patents)

8.  Ayumu Nozawa (4 out of 4 patents)

9.  Iwao Sakane (4 out of 4 patents)

10.  Akio Sugimoto (3 out of 3 patents)

11.  Yasuhiko Ikegawa (3 out of 3 patents)

12.  Yuko Sagesaka (3 out of 3 patents)

13.  Izumi Kobayashi (2 out of 12 patents)

14.  Keisuke Numata (2 out of 2 patents)

15.  Fumio Ito (2 out of 2 patents)


Core Competencies:
Green Tea
Black Tea
Beverage Production
Extraction Method
Sugar Alcohols
Catechins
Caffeine
Vegetable Juice
Antibacterial Fiber
Xanthine Oxidase Inhibitor
Brassicaceous Vegetables
Concentration Enhancement

28 patents:

1. 9668495 - Green tea beverage with sugar alcohols and catechins and process packed in container (2017-06-06),
2. 8741371 - Tea leaves for extraction of green tea beverage (2014-06-03),
3. 8728557 - Fruit-juice-containing black tea beverage packed in a container and method for producing same (2014-05-20),
4. 8568811 - Method of manufacturing tea drink (2013-10-29),
5. 8529978 - Tea leaves for extraction of a green tea beverage (2013-09-10),
6. 8529977 - Green tea beverage packed in container (2013-09-10),
7. 8227042 - Method for producing wooden board (2012-07-24),
8. 7972644 - Bottleable green tea beverage (2011-07-05),
9. 7959965 - Instant green tea (2011-06-14),
10. 7927460 - Silver skin-containing paper and method for producing the same (2011-04-19),
11. 7682643 - Method for manufacturing containered green tea beverage (2010-03-23),
12. 7666452 - Beverage comprising cathechins and caffeine (2010-02-23),
13. 7635459 - Method of removing nitric acid from aqueous liquid and method of producing drinks (2009-12-22),
14. 7407680 - Method for manufacturing vegetable juice and the like with decreased nitrate ions (2008-08-05),
15. 7022367 - Oolong tea beverage and process of producing the same (2006-04-04),
Company Overview
Ito En, Ltd. is a prominent Japanese company specializing in the development and production of beverages, particularly green tea and other health-oriented drinks. The company is recognized for its commitment to quality and innovation in the beverage industry, leveraging advanced research in food science and nutrition. With a strong presence in both domestic and international markets, Ito En focuses on promoting healthy lifestyles through its diverse product offerings, which include ready-to-drink teas, bottled water, and functional beverages.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Ito En, Ltd. USPTO Patent Assignee Logo
28 Patents

#1,114 in Tokyo

#2,417 in Japan

#23,317 in the World

Tokyo, JP
Tokyo, Japan

Ito En, Ltd.

Forward Citations = 98

63 inventors:

goldMedal Masami Sasame (9 out of 9 patents)

silverMedal Hitoshi Kinugasa (8 out of 8 patents)

bronzeMedal Takanobu Takihara (7 out of 7 patents)

4.  Takami Kakuda (7 out of 7 patents)

5.  Kazunori Okanoya (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ito En, Ltd.. Retrieved from https://idiyas.com/company/ito-en

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

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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