NM

Naohisa Miyakawa

TC Tokiwa Chemical Industries Co.: 15 patents #1 of 13Top 8%
SC System Technical Co.: 10 patents #2 of 3Top 70%
DC Du Pont-Mitsui Polychemicals Co.: 1 patents #26 of 53Top 50%
RT Riken Technos: 1 patents #38 of 69Top 60%
Overall (All Time): #246,887 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
12337518 Method for producing an extrusion molded product Takashi Hirokawa 2025-06-24
11141897 Method for producing an extrusion molded product Takashi Hirokawa 2021-10-12
8479451 Extrusion molded product having a core material Katsuhisa Kato 2013-07-09
7811653 Extrusion molded article for automobiles Hiromasa Sanada, Naoyuki Ono, Tomozo Ogawa 2010-10-12
7459111 Manufacturing method of synthetic resin core material Katsuhisa Kato 2008-12-02
7044525 Automotive extrusion-molded product and manufacturing method therefor Katsuhisa Kato 2006-05-16
6273983 Molding for vehicle and its manufacturing method Katsuhisa Kato 2001-08-14
6217807 Molding for automobile and its manufacturing method Katsuhisa Kato 2001-04-17
6218623 Protective tubular member for automotive control wire and manufacturing method therefor Katsuhisa Kato 2001-04-17
5447671 Window glass edging member for a vehicle such as an automobile and method for manufacturing the edging member Katsuhisa Kato, Minoru Masuzawa 1995-09-05
5441685 Method for producing a window glass edging member for a vehicle such as an automobile Minoru Masuzawa, Katsuhisa Kato 1995-08-15
5424019 Method for manufacturing weather strips for motor vehicles Katsuhisa Kato 1995-06-13
5343655 Weather strip for the window glass of an automobile Minoru Masuzawa, Katsuhisa Kato 1994-09-06
5283100 Molding for automobile windows Toshio Yui, Yoshimasa Yamamoto 1994-02-01
4984839 Front glass moulding for vehicle Katuhisa Kato 1991-01-15
4911959 Ornamental band for vehicle or the like and method for making same 1990-03-27
4757659 Front glass mouldings Siyosuke Seto 1988-07-19
4757660 Front glass mouldings Syosuke Seto 1988-07-19