P

Inventor

FUJIWARA MASARU

JP38 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON PILLAR PACKING

16 patents
US5765838AJun 16, 1998

Sealing gasket made of expanded graphite, with opened thin-leaf surface structure

NIPPON PILLAR PACKING61 citations96
US7086650B2Aug 8, 2006

Gland packing

NIPPON PILLAR PACKING17 citations92
US5803464ASep 8, 1998

Gland packing

NIPPON PILLAR PACKING20 citations92
US5628520AMay 13, 1997

Sealing material made of expanded graphite having opened thin-leaf surface structure

NIPPON PILLAR PACKING26 citations92
US6644007B2Nov 11, 2003

Braiding yarn made of expanded graphite

NIPPON PILLAR PACKING14 citations84
US6708479B1Mar 23, 2004

Braiding yarn made of expanded graphite

NIPPON PILLAR PACKING11 citations74
US6572117B2Jun 3, 2003

Gland packing

NIPPON PILLAR PACKING8 citations74
US6082739AJul 4, 2000

Gland packing

NIPPON PILLAR PACKING8 citations74
US7353645B2Apr 8, 2008

Material for gland packing and the gland packing

NIPPON PILLAR PACKING3 citations63
US7155892B2Jan 2, 2007

Material for gland packing and the gland packing

NIPPON PILLAR PACKING3 citations63
US7140171B2Nov 28, 2006

Material for gland packing and the gland packing

NIPPON PILLAR PACKING5 citations63
US7448631B2Nov 11, 2008

Braiding yarn made of expanded graphite, and gland packing

NIPPON PILLAR PACKING5 citations62
US11982355B2May 14, 2024

Yarn and gland packing

NIPPON PILLAR PACKING0 citations54
US8375693B2Feb 19, 2013

Yarn

NIPPON PILLAR PACKING0 citations50
US10533268B2Jan 14, 2020

Sealing material composition and gland packing containing the sealing material composition

NIPPON PILLAR PACKING0 citations49
US12085171B2Sep 10, 2024

Gland packing and packing structure

NIPPON PILLAR PACKING0 citations46

FUJIWARA MASARU

6 patents

MITSUBA CORP

5 patents

KITZ CORP

2 patents

NIPPON PILLAR PACKAGING CO LTD

2 patents

MACHIDA KEN

2 patents

UEDA TAKAHISA

2 patents

OLYMPUS OPTICAL CO

1 patent

UNIV TOHOKU

1 patent

SUNTORY HOLDINGS LTD

1 patent