Koyanagi; Naohisa

Patent Applications and Registrations

Patent applications and USPTO patent grants for Koyanagi; Naohisa.The latest application filed is for "compact motor".

Company Profile

0.8.7

Koyanagi; Naohisa - Isesaki JP
Koyanagi; Naohisa - Isesaki-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Compact motor Grant 8,334,627 - Koyanagi December 18, 2	2012-12-18
Compact motor App 20100289364 - Koyanagi; Naohisa	2010-11-18
Axial air-gap vibration motor Grant 7,088,022 - Yamaguchi , et al. August 8, 2	2006-08-08
Magnetic sound transducer containing flat vibration motor App 20060091747 - Yamaguchi; Tadao ; et al.	2006-05-04
Flat vibration brushless motor App 20060028077 - Yamaguchi; Tadao ; et al.	2006-02-09
Flat rotor and motor comprising the same Grant 6,909,206 - Koyanagi , et al. June 21, 2	2005-06-21
Axial air-gap vibration motor App 20050099074 - Yamaguchi, Tadao ; et al.	2005-05-12
Axially sliding contact type of a commutator, a rotor including the commutator, and an electric motor having the rotor Grant 6,853,109 - Koyanagi , et al. February 8, 2	2005-02-08
Flat rotor and motor comprising the same App 20040212270 - Koyanagi, Naohisa ; et al.	2004-10-28
Eccentric rotor having high density member, manufacturing method thereof, and flat coreless vibrator motor using the eccentric rotor Grant 6,765,331 - Koyanagi , et al. July 20, 2	2004-07-20
Flat core brushless motor Grant 6,762,518 - Yamaguchi , et al. July 13, 2	2004-07-13
Axially sliding contact type of a commutator, a rotor including the commutator, and an electric motor having the rotor App 20030193262 - Koyanagi, Naohisa ; et al.	2003-10-16
Eccentric rotor having high density member, manufacturing method thereof, and flat coreless vibrator motor using the eccentric rotor App 20030001451 - Koyanagi, Naohisa ; et al.	2003-01-02
Brushless vibrator motor for a wireless silent alerting device Grant 5,373,207 - Yamaguchi , et al. December 13, 1	1994-12-13
Vibrator motor for a wireless silent alerting device Grant 5,341,057 - Yamaguchi , et al. August 23, 1	1994-08-23

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