Photomask blank
Latest Hoya Corporation Patents:
- Endoscope cap, endoscope and method of manufacturing endoscope cap
- Endoscope and endoscope system controlled by pair of cable bundles
- REFLECTION-TYPE MASK BLANK, REFLECTION-TYPE MASK, METHOD FOR MANUFACTURING REFLECTION-TYPE MASK, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
- ENDOSCOPE PROCESSOR, PROGRAM, AND INFORMATION PROCESSING METHOD
- REFLECTIVE MASK BLANK, REFLECTIVE MASK, METHOD FOR MANUFACTURING REFLECTIVE MASK, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
Description
The broken line showing is for illustrative purposes only and forms no part of the claimed design.
Claims
The ornamental design for a photomask blank, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
1676741 | July 1928 | Moskowitz |
2728451 | December 1955 | Leander |
5112727 | May 12, 1992 | Inui et al. |
5217256 | June 8, 1993 | Lomas |
5234781 | August 10, 1993 | Sakamoto et al. |
6122035 | September 19, 2000 | Rolson |
D441730 | May 8, 2001 | Oba |
6285783 | September 4, 2001 | Isomura et al. |
D502866 | March 15, 2005 | Woollard |
D537048 | February 20, 2007 | Mitsui |
D543160 | May 22, 2007 | Mitsui et al. |
20020187407 | December 12, 2002 | Priestley et al. |
20030118918 | June 26, 2003 | Ohta |
20030198873 | October 23, 2003 | Kokjohn |
20040265708 | December 30, 2004 | Misaka |
20050120326 | June 2, 2005 | Semmler et al. |
20050147893 | July 7, 2005 | Ogawa et al. |
20050269814 | December 8, 2005 | Dillavou et al. |
- U.S. Appl. No. 29/213,840, filed Sep. 23, 2004, Inventor: Masaru Mitsui; Entitled: Photomask Blank.
Patent History
Patent number: D568839
Type: Grant
Filed: Jan 23, 2007
Date of Patent: May 13, 2008
Assignee: Hoya Corporation (Tokyo)
Inventors: Masaru Mitsui (Mukawa-mura), Shigekazu Matsui (Nirasaki), Masao Ushida (Kofu), Osamu Nagarekawa (Nirasaki)
Primary Examiner: Selina Sikder
Attorney: Frishauf, Holtz, Goodman & Chick, P.C.
Application Number: 29/276,360
Type: Grant
Filed: Jan 23, 2007
Date of Patent: May 13, 2008
Assignee: Hoya Corporation (Tokyo)
Inventors: Masaru Mitsui (Mukawa-mura), Shigekazu Matsui (Nirasaki), Masao Ushida (Kofu), Osamu Nagarekawa (Nirasaki)
Primary Examiner: Selina Sikder
Attorney: Frishauf, Holtz, Goodman & Chick, P.C.
Application Number: 29/276,360
Classifications
Current U.S. Class:
Semiconductor, Transistor Or Integrated Circuit (24) (D13/182)