Ryuichiro Maruyama — 10 Patents at Sony

Ryuichiro Maruyama has been granted 10 US patents while listed as an inventor at Sony. The first was granted in 2006 and the most recent in October 2025. Ryuichiro Maruyama ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Ryuichiro Maruyama in Yokohama, JP.

Patents per Year

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Showing 1–10 of 10 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12448782	Construction material, decorative member, and method for manufacturing decorative member	Nobuyuki Okayama, Hirohiko Aikawa, Tomoichiro Yamamoto, Arisa Miyake	2025-10-21
7892063	Method of manufacturing tubular carbon molecule and tubular carbon molecule, method of manufacturing recording apparatus and recording apparatus, method of manufacturing field electron emission device and field electron emission device, and method of manufacturing display unit and display unit	Dharam Pal Gosain, Hisashi Kajiura, Masashi Shiraishi, Houjin Huang, Koji Kadono +2 more	2011-02-22	$364,000
7828620	Method of manufacturing tubular carbon molecule and tubular carbon molecule, method of manufacturing field electron emission device and field electron emission device, and method of manufacturing display unit and display unit	Dharam Pal Gosain, Hisashi Kajiura, Masashi Shiraishi, Houjin Huang, Koji Kadono +2 more	2010-11-09	$473,000
7790539	Electronic device and method for producing the same	Masafumi Ata, Masashi Shiraishi	2010-09-07	$331,000
7719032	Electronic device and its manufacturing method	Masafumi Ata, Masashi Shiraishi	2010-05-18	$258,000
7642541	Functional device and method of manufacturing it	Eriko Matsui, William Ford, Jurina Wessels, Akio Yasuda, Tsuyonobu Hatazawa	2010-01-05	$807,000
7060381	Electric energy generating element	Mitsuaki Miyakoshi, Hiroshi Miyazawa, Tomikazu Watanabe, Kiyoshi Yamaura, Shuichi Takizawa	2006-06-13	$638,000
7056423	Apparatus for producing hydrogen, electrochemical device, method for producing hydrogen and method for generating electrochemical energy	Hiroshi Miyazawa, Hirofumi Okui, Koichiro Hinokuma	2006-06-06	$759,000
7045240	Power generating apparatus having a proton conductor unit that includes a fullerene derivative	Atsuo Yamada, Hisashi Kajiura, Masashi Shiraishi, Yasuhiro Watanabe, Takahiro Nakamura +1 more	2006-05-16	$798,000
7029782	Electrochemical hydrogen flow rate control system	Masafumi Ata, Makoto Oogane	2006-04-18	$1,052,000

Ryuichiro Maruyama — 10 Patents

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