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For the Inventor, By the Inventor

Tokyo, Japan

Denki Kagaku Kogyo Kabushiki Kaisha


USPTO Granted Patents = 475



Trademarks = 26

Forward Citations = 3,201


where 'Filed Patents' based on already Granted Patents

where 'Inventors Filed' based on already Granted Patents


931 inventors (with patents filed for the assignee):

goldMedal Toru Arai (21 out of 41 patents)

silverMedal Takeshi Miyakawa (20 out of 36 patents)

bronzeMedal Yoshinori Terui (17 out of 18 patents)

4.  Mikio Shimizu (17 out of 17 patents)

5.  Toshiaki Otsu (17 out of 18 patents)

6.  Takashi Kawasaki (13 out of 85 patents)

7.  Hideki Hirotsuru (13 out of 29 patents)

8.  Hideyuki Emoto (13 out of 29 patents)

9.  Kazuhiro Oshima (13 out of 13 patents)

10.  Akira Miyai (13 out of 13 patents)

11.  Shigeru Suzuki (13 out of 37 patents)

12.  Yasushi Abe (12 out of 26 patents)

13.  Hiroyuki Kurimura (11 out of 19 patents)

14.  Masahiro Ibukiyama (11 out of 11 patents)

15.  Masaji Ishii (11 out of 11 patents)


475 patents:

1. 11673979 - Binder for glass paper (2023-06-13),
2. 10005867 - Modified polyvinyl alcohol and process for producing the same (2018-06-26),
3. 9821535 - Interlayer for laminated glass, and laminated glass (2017-11-21),
4. 9216193 - Crosslinked hyaluronic acid composition and self-crosslinking hyaluronic acid particles (2015-12-22),
5. 9190189 - Aluminum nitride substrate for circuit board and production method thereof (2015-11-17),
6. 9163175 - β-sialon and method of manufacturing thereof, and light-emitting device (2015-10-20),
7. 9156961 - Vulcanizate and process for producing same (2015-10-13),
8. 9139769 - Beta-sialon, method for producing same and light-emitting device using same (2015-09-22),
9. 9138970 - Thermally shrinkable laminated film (2015-09-22),
10. 9080019 - Sulfur-modified chloroprene rubber, molded article, and method for producing sulfur-modified chloroprene rubber (2015-07-14),
11. 9074031 - Method for producing polyvinyl alcohol resin (2015-07-07),
12. 9072791 - Photostabilized pharmaceutical compositions (2015-07-07),
13. 9067398 - Method for disassembling bonded body, and adhesive (2015-06-30),
14. 9062239 - Acrylic rubber composition and vulcanized product thereof (2015-06-23),
15. 9061485 - Method of manufacturing translucent rigid substrate laminate (2015-06-23),
Denki Kagaku Kogyo Kabushiki Kaisha, also known as Denka, is a Japanese chemical company that specializes in the manufacture of organic and inorganic chemicals, as well as electronic materials. With a rich history dating back to 1915, Denka has become a global leader in various industries such as semiconductor, electronics, automotive, and construction. Their commitment to innovation and sustainable practices has made them a trusted partner for many customers worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

475 Patents

#174 in Tokyo

#386 in Japan

#1,952 in the World

...
Tokyo, Japan

Denki Kagaku Kogyo Kabushiki Kaisha

Forward Citations = 3,201

931 inventors:

goldMedal Toru Arai (21 out of 41 patents)

silverMedal Takeshi Miyakawa (20 out of 36 patents)

bronzeMedal Yoshinori Terui (17 out of 18 patents)

4.  Mikio Shimizu (17 out of 17 patents)

5.  Toshiaki Otsu (17 out of 18 patents)

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