Asserter profile
Astellas Pharma Inc.
operating company4 patents now5 ever1 case filed during tenure4 connections
Also seen as: ASTELLAS PHARMA INC.
Two-hop network
Edges marked ⚖️ overlap with at least one infringement suit filed during the receiving entity’s tenure with the patent. Bold-bordered = this entity. Red = NPE; orange = shell LLC; green = defensive aggregator; blue = operating company.
flowchart LR
Nastellas_pharma["Astellas Pharma Inc."]
Ntoyota_hiroyasu_irie_ryousuke_oba_shinsuke_kanbayashi_atsush["TOYOTA, Hiroyasu; IRIE, Ryousuke; OBA,…"]
Nmichiel_de_vries_walter_krauwinkel["Michiel de Vries; Walter Krauwinkel"]
Ntaoufik_ouatas["Taoufik Ouatas"]
Nfujisawa_pharmaceutical["Fujisawa Pharmaceutical Co., Ltd."]
Ngoto_toshio_hatanaka_hiroshi_kino_tohru_okuhara_masakuni_tan["GOTO, TOSHIO; HATANAKA, HIROSHI; KINO,…"]
Nhata_takehisa_kagayama_akira_kimura_sumihisa_murata_saburo_t["Hata, Takehisa; Kagayama, Akira; Kimura…"]
Nyamanaka_masayuki_shimojo_fumio_ueda_satoshi_and_others["Yamanaka, Masayuki; Shimojo, Fumio; Ued…"]
Ntoyota_hiroyasu_irie_ryousuke_oba_shinsuke_kanbayashi_atsush -->|"2023 · Assignment of Assignors Interest · 11839689"| Nastellas_pharma
Nmichiel_de_vries_walter_krauwinkel -->|"2017 · Confirmatory Assignment · 12161628"| Nastellas_pharma
Ntaoufik_ouatas -->|"2019 · Confirmatory Assignment · 12161628"| Nastellas_pharma
Nfujisawa_pharmaceutical -->|"2005 · Merger · 4894366"| Nastellas_pharma
Nfujisawa_pharmaceutical -->|"2005 · Merger / Change of Name · 5601844"| Nastellas_pharma
Nfujisawa_pharmaceutical -->|"2005 · Merger / Change of Name · 6387918"| Nastellas_pharma
Ngoto_toshio_hatanaka_hiroshi_kino_tohru_okuhara_masakuni_tan -->|"1989 · Assignment · 4894366"| Nfujisawa_pharmaceutical
Nhata_takehisa_kagayama_akira_kimura_sumihisa_murata_saburo_t -->|"1995 · Assignment · 5601844"| Nfujisawa_pharmaceutical
Nyamanaka_masayuki_shimojo_fumio_ueda_satoshi_and_others -->|"1999 · Assignment · 6387918"| Nfujisawa_pharmaceutical
classDef focal fill:#fef3c7,stroke:#92400e,stroke-width:3px,color:#1c1917
classDef npe fill:#fee2e2,stroke:#be123c,stroke-width:2px,color:#1c1917
classDef shell fill:#fed7aa,stroke:#9a3412,stroke-width:2px,color:#1c1917
classDef defensive fill:#dcfce7,stroke:#15803d,stroke-width:2px,color:#1c1917
classDef operating fill:#e0f2fe,stroke:#075985,stroke-width:1px,color:#1c1917
class Nastellas_pharma focal
class Nfujisawa_pharmaceutical operating
Patents currently held (4)
- US 48943662005-04-01 → present
- US 63879182005-04-01 → present
- US 56018442005-12-19 → present
- US 118396892023-10-30 → present
- Astellas US LLC et al. v. Dr Reddys Laboratories Ltd filed 2026-04-17
Patents previously held (1)
- US 121616282019-11-08 → 2020-12-15
Connected entities (4)
- Fujisawa Pharmaceutical Co., Ltd.operating company3 patents
- TOYOTA, Hiroyasu; IRIE, Ryousuke; OBA, SHINSUKE; KANBAYASHI, ATSUSHI; TAKAISHI, YUUKI; NISHIMURA, KOJI; SAKAI, TOSHIROindividual1 patent
- Michiel de Vries; Walter Krauwinkelindividual1 patent
- Taoufik Ouatasindividual1 patent
Correspondent attorneys (1)
Attorneys / firms recorded with USPTO when this entity received a patent. Recurrence is the signal — many firms do both NPE and operating-company patent work, so a single appearance doesn’t mean much.
- (no name)· OLSON & PONS2 appearances