Osamu Koshinaka

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Izumi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Thread tension device for overedge sewing machines
- Patent number 4,803,936
- Issue date Feb 14, 1989
- Maruzen Sewing Machine Co., Ltd.
- Yoshio Mikuni
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Looper changeover device
- Patent number 4,799,440
- Issue date Jan 24, 1989
- Maruzen Sewing Machine Co., Ltd.
- Osamu Koshinaka
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Double purpose looper for overlocking sewing machine
- Patent number 4,799,439
- Issue date Jan 24, 1989
- Maruzen Sewing Machine Co., Ltd.
- Osamu Koshinaka
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Overedge sewing machine
- Patent number 4,690,080
- Issue date Sep 1, 1987
- Maruzen Sewing Machine Co., Ltd.
- Yoshio Mikuni
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Swingable mounting for a trimmer in a overlock machine
- Patent number 4,649,841
- Issue date Mar 17, 1987
- Maruzen Sewing Machine Co., Ltd.
- Osamu Koshinaka
- D05 - SEWING EMBROIDERING TUFTING