Takahiro Kumakawa — 18 Patents at Panasonic

Takahiro Kumakawa has been granted 18 US patents while listed as an inventor at Panasonic. The first was granted in 2001 and the most recent in May 2025. Takahiro Kumakawa ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Takahiro Kumakawa in Kyoto, JP.

Patents per Year

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12293877	Electrolytic capacitor	Shinya Suzuki, Junichi Kurita	2025-05-06
12257650	Joined structure, joining method, and joining material	—	2025-03-25
11742150	Solid electrolytic capacitor including an exterior body that covers a capacitor element and method of manufacturing the same	Renki Yamazaki	2023-08-29
11715606	Solid electrolytic capacitor having a metal film formed on a portion of a cathode body exposed from an exterior body	Renki Yamazaki	2023-08-01
11295902	Solid electrolytic capacitor including anode body penetrating into anode-side electrode layer	Renki Yamazaki	2022-04-05
11227725	Solid electrolytic capacitor including a plurality of capacitor elements and method for producing the same	Renki Yamazaki, Shinya Suzuki	2022-01-18
8299580	Semiconductor wafer and a method of separating the same	Hideki Kojima, Tomoaki Furukawa	2012-10-30
7964475	Semiconductor wafer, method of manufacturing the same and semiconductor device	Yukiko Haraguchi, Takashi Yui, Kazumi Watase	2011-06-21	$95,000
7859084	Semiconductor substrate	Masaki Utsumi	2010-12-28	$92,000
7838323	Method for fabricating semiconductor device	Masaki Utsumi, Masami Matsuura, Yoshihiro Matsushima	2010-11-23	$113,000
7808059	Semiconductor substrate, and semiconductor device and method of manufacturing the semiconductor device	—	2010-10-05	$111,000
7754584	Semiconductor substrate, and semiconductor device and method of manufacturing the semiconductor device	—	2010-07-13	$105,000
6924173	Semiconductor device and method for the fabrication thereof	Kazumi Watase, Hiroaki Fujimoto, Ryuichi Sahara, Nozomi Shimoishizaka, Kazuyuki Kaino +1 more	2005-08-02	$294,000
6852616	Semiconductor device and method for producing the same	Ryuichi Sahara, Kazumi Watase, Kazuyuki Kainoh, Nozomi Shimoishizaka	2005-02-08	$232,000
6812573	Semiconductor device and method for manufacturing the same	Nozomi Shimoishizaka, Ryuichi Sahara, Yoshifumi Nakamura, Shinji Murakami, Yutaka Harada	2004-11-02	$211,000
6559528	Semiconductor device and method for the fabrication thereof	Kazumi Watase, Hiroaki Fujimoto, Ryuichi Sahara, Nozomi Shimoishizaka, Kazuyuki Kaino +1 more	2003-05-06	$160,000
6512298	Semiconductor device and method for producing the same	Ryuichi Sahara, Kazumi Watase, Kazuyuki Kainoh, Nozomi Shimoishizaka	2003-01-28	$196,000
6313532	Semiconductor device and method for manufacturing the same	Nozomi Shimoishizaka, Ryuichi Sahara, Yoshifumi Nakamura, Shinji Murakami, Yutaka Harada	2001-11-06	$221,000