Minoru Hiroshima — 17 Patents at Hitachi

Minoru Hiroshima has been granted 17 US patents while listed as an inventor at Hitachi. The first was granted in 1981 and the most recent in May 2011. Minoru Hiroshima ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Minoru Hiroshima in Mobara, JP.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7938617	Pressure test method of double suction volute pump	Tomohiro Naruse, Hideki Akiniwa, Hiroaki Yoda	2011-05-10	$164,000
6853416	Liquid crystal display device	Tatsuo Hamamoto, Yoshifumi Tomita, Tomoaki Tsuboka	2005-02-08	$95,000
6705584	Liquid crystal display device	Tatsuo Hamamoto, Hironobu Yamada	2004-03-16	$256,000
5576587	High-speed rotor and controller for controlling magnetic bearings used therefor	Naohiko Takahashi, Yasuo Fukushima	1996-11-19	$124,000
5555112	Liquid crystal display device having multilayer gate busline composed of metal oxide and semiconductor	Ryoji Oritsuki, Masahiro Yanai, Masaaki Matsuda, Toshikazu Horii, Yuichi Hashimoto +4 more	1996-09-10	$81,000
5491396	Magnetic bearing apparatus and rotating machine having such an apparatus	Naohiko Takahashi, Osami Matsushita, Yasuo Fukushima	1996-02-13	$234,000
5486729	Method and apparatus for controlling a magnetic bearing	Osami Matsushita, Mitsuho Yoneyama, Naohiko Takahashi, Yasuo Fukushima, Tadashi Kaneki +2 more	1996-01-23	$264,000
5408875	Balancing method for flexible rotor and a balancer applicable to the balancing method	Osami Matsushita, Naohiko Takahashi, Mitsuho Yoneyama, Yasuo Fukushima, Naohumi Sakanashi +1 more	1995-04-25	$46,000
4689769	Magnetic bubble memory	Mituru Sekino, Masahiro Yanai	1987-08-25	$165,000
4617644	High-density magnetic bubble memory device	Shinzo Matsumoto, Mitsuru Sekino, Yoshinori Taniguchi	1986-10-14	$123,000
4502129	Magnetic bubble detector	Ryo Suzuki, Masatoshi Takeshita, Yutaka Sugita	1985-02-26	$65,000
4473891	Magnetic bubble memory device	Shinzo Matsumoto	1984-09-25
4470132	Magnetic bubble memory device	Shinzo Matsumoto	1984-09-04	$37,000
4468758	Magnetic bubble memory chip	Kohzo Hara, Ryo Suzuki, Masatoshi Takeshita	1984-08-28	$49,000
4334290	Magnetic bubble memory element with heat sink	Toshio Futami, Hirofumi Ohta	1982-06-08	$80,000
4322818	Magnetic bubble memory device	Hirofumi Ohta	1982-03-30	$142,000
4305137	Planar magnetic bubble device	Ryo Suzuki	1981-12-08	$200,000

Minoru Hiroshima — 17 Patents

Issued Patents All Time

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