President's Address   Company Profile   Products & Technologies   Patents & Awards   Company News   Contact Us   Chinese Version


 

      PATENTS AND AWARDS     


 
   

Awards

National Technology PrizeMunicipal Technology PrizeSpecial Contribution AwardStar Enterprise AwardISO9001 CertificateHi-Tech EnterpriseGold Prize of Invention (A)Gold Prize of Invention (B)

 

Patents

China ((ZL 02 1 06915.8)China (86 102269.6)China (85 1 01505.0)USA (4,678,546)USA (4,810,584)Europe (0196093)Japan (1935831)
 

                Title: The Manufacturing Method and Application of Tantalum Spinneret

                Inventor: Liu, Yuzhong                                              Patent Number: 86 1 0 2269.5

                Date of Application: Appril 9, 1986                          Date of Issued: March 16, 1989

                Approved by the State Patent Office of People's Republic of China (the former State Intellectual
                Property Office of People's Republic of China)

 

 


Copyright © 2009 Beijing Huayu Chuangxin. All Rights Reserved.

Invention Patent: China 86 1 02269.6